Submit all three charts and the Velocity vs Time graph. Also, include a paragraph about what you can conclude about the relationship between a constant force
and motion.
Table C
Position (cm/s)
Time (s)
0
1
Sample Ouly
Do not write here.
2
3
4
5
Table E
Velocity (cm/s) Time (s)
0.5
1.5
Sample Only
Do not write hers
3.5
4.5
5.5
6.5
x (m)
12
2986
10
420
0
Time
(s)
0
1
2
لي
4
5
6
7
Table D
Position
(cm/s)
Velocity=
Sample Only
Do not write hore
Position vs Time
2
Average Velocity
(cm/s)
3
time (si
4
Change in position
Change in time
6
Answers
Graphs of velocity-time with constant velocity are Case 1 (zero acceleration)
Velocity-time graphs with constant acceleration are Case 2.
Case 3: Acceleration graphs of increasing velocity.
What are the three types of velocity-time graph?Graphs of velocity-time with constant velocity are Case 1 (zero acceleration).
In a velocity-time graph where time is represented by the X-axis and velocity is represented by the Y-axis, the velocity is constant when:
The velocity is constant (c), as seen on the graph, throughout the time period.
The velocity of matter particles will always be c at every instant, regardless of how much time passes. Since the initial velocity was assumed to be positive in this instance.
When the initial velocity is negative, the graph will change.
A particle's velocity will remain constant over time if its acceleration is zero (zero), which is equivalent to a constant speed of 5 m/s at time zero.
Graphs of velocity-time with constant acceleration in Case 2
The equation states that the particle's starting velocity will rise linearly as the acceleration is constant (positive) and positive.
v = u + at
U = 0 and v = at
The particle will move at a linear rate with respect to time, as depicted in the image. You can determine how much acceleration there is by looking at the graph's slope.
Example: The starting velocity is zero and grows linearly if a particle's acceleration is constant (k) and positive. You may determine the acceleration by looking at the velocity-time graph's slope.
Case 3: Acceleration graphs of increasing velocity
The equation: v = u + at predicts that the velocity-time graph will be a curve when the acceleration is increasing with time.
as v= at because u = 0
Because acceleration depends on time, the velocity-time graph will be a curve.
It should be noted that while the acceleration keeps rising with time, so too will the slope's size.
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Related Questions
assuming that there are no charges in the four regions shown in the figure, which of the patterns could represent an electric field? only 1 all none only 2 only 4
Answers
The pattern that could represent an electric field is pattern B.
The complete question is in the attachment. The electric field is the electric force that exists around electric charges. The electric field can be described by electric field lines. Rule of electric field lines
The direction of the electric field is always towards positive charges and away from negative charges.Electric field lines use arrowheads pointing in the appropriate direction.If at a point the electric field lines are getting denser, it means that the electric field is stronger at that point.The electric field is always directed perpendicular to the surface of an object.The electric field lines must not intersect and be unbroken.Electric field lines always come from a source of charge.Look at the picture
Pattern AThe electric field lines that go in and out of that charge. It is impossible, because from a single point, it has only one direction.
Pattern A does not show the electric field.Pattern B
The electric field lines have one direction and do not intersect.
Pattern B shows the pattern of electric field.Pattern C
There are some visible electric field lines broken.
Pattern C does not show the electric field.Pattern D
Pattern D does not describe a line but a circular lines.
Pattern D does not show the electric field.
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Which of the following can be used to measure an object's motion? A. the distance the object has traveled B. the time the object has been travelling C. all of these
Answers
The distance the object has traveled, the time the object has been traveling. All of these can be used to measure an object's motion: option C. is the correct answer.
What is an object's motion?The motion of an object with some mass can be explained in terms of the following:
DistanceDisplacementSpeedVelocityTimeAccelerationNote: Motion is the displacement of an object with respect to its surroundings in a given interval of time.
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How to convert 139 pounds to kilograms?
Answers
139 pounds will be 63.04 kilograms
Define pounds.
The British imperial and American customary systems of measurement both utilize the pound as a unit of mass. The international avoirdupois pound, which is legally defined as exactly 0.45359237 kilograms and is divided into 16 ounces, is the definition that is currently most frequently used.
16 ounces and precisely 7,000 grains make up an pound. A (international) grain is consequently equivalent to precisely 64.79891 milligrams because the conversion factor between the kilogram and the international pound was chosen to be divisible by 7 with a terminating decimal representation.
To convert lbs to kg, multiply the given lbs value by 0.45359237 kg
So 139 pounds will be 63.04 kilograms.
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what is the pv of the pipelines cash flows if its cash flows are assumed to last forever
Answers
A discount rate and the present value of an annuity formula can be used to determine the present value of cash flows from a pipeline that are projected to last indefinitely.
A series of cash flows' present value (PV) is the total of each cash flow's individual present values, discounted back to the present using a discount rate. The formula for calculating the present value of an annuity is the same as the formula for calculating the present value of a cash flow that never ends annuity.
The formula for the present value of an annuity can be used to determine the present value of these cash flows in this scenario if it is assumed that the cash flows from the pipeline would persist indefinitely. It goes like this:
PV = C / r
where C represents a steady cash flow and r represents a discount rate. The discount rate illustrates the temporal value of money by accounting.
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How does an electrical impulse travel through a nerve cell?
Answers
An electrical impulse travel through a nerve cell by dendrites to the cell body.
The fundamental functional unit of the nervous system, the neuron, is in charge of receiving, carrying, and transmitting nerve impulses.
The dendrites of the neurons receive the electrical impulses.
These electrical impulses are sent from the dendrites to the cell body where they originate.
The axon carries the impulses from the cell body to the axonal end after receiving them.
The adult human brain is estimated to have 86 billion nerve cells, also known as neurons, which are the basic functioning components of the nervous system. A nerve cell's function is to receive information from other cells and convey it to other cells. In the human body, there are three basic types of nerve cells that work together to sense and analyze information about our surroundings before evoking reactions to these stimuli.
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a player hit a serve in a racket sport that was clocked at 61 mph. how much work did have to do on the -oz ball to get it to that speed?
Answers
The work we have to do on the -oz ball to get it to that speed is 62.20 ft.lb.
1 ounce = 0.0625 pound
1 mile per hour is = 1.46667 [tex]\frac{ft}{sec}[/tex]
Now, the speed of ball is =89.46687 [tex]\frac{ft}{sec}[/tex]
Now, to find the weight of the ball=0.0625 ×8
weight of ball=0.5lb
The energy an object has as a result of motion is known as kinetic energy.
A force must be applied to an object in order to accelerate it. We must put in effort in order to apply a force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed. Kinetic energy is the type of energy that is transferred and is dependent on the mass and speed attained.
Kinetic Energy=[tex]\frac{1}{2} mv^{2}[/tex]
Kinetic Energy=[tex]\frac{1}{2}\times0.5\times89.46687^{2}[/tex]
Kinetic Energy=2001.082 [tex]\frac{ft^{2} }{sec^{2} }\times lb[/tex]
Now, 1lbf =32.174049[tex]\frac{ft}{sec^{2} }\times lb[/tex]
Now, kinetic energy=[tex]\frac{2001.082}{32.174049}[/tex]
kinetic energy=62.20 ft.lb
Now, kinetic energy will always be equal to work done.
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A 55-kilogram ice skater slides across a level ice surface and the force of friction acting on the skates has a magnitude of 11 newtons.
Answers
On a level ice surface, a 55-kilogram skater glides over it while being subject to a friction force of 11 newtons. The skater's acceleration is -0.2 m/s^2.
The force of friction acting on the skater can be calculated as follows:
friction = μ * N
where
μ = coefficient of friction between the ice and skates (assumed to be constant)
N = normal force, which is equal to the weight of the skater
N = m * g
where
m = mass of the skater (55 kg)
g = acceleration due to gravity (9.8 m/s^2)
By substituting the values, we get:
friction = μ * m * g = 11 N
Finally, the net force acting on the skater can be calculated as follows:
net force = friction = -11 N (opposite direction to motion)
The acceleration of the skater can be calculated using Newton's second law of motion:
a = F / m
= -11 N / 55 kg
= -0.2 m/s^2
The acceleration of the skater is -0.2 m/s^2.
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Note: The correct question would be as bellow,
A 55-kilogram ice skater slides across a level ice surface and the force of friction acting on the skates has a magnitude of 11 newtons. Find the coefficients of static and kinetic friction between the skates and the ice.
whatoccurs on earth as a result of the gravitational attraction between the moon,sun, and earth?
Answers
Tides occurs on earth as a result of the gravitational attraction between the moon, sun, and earth.
The force that changes the levels of the oceans is known as a tidal force, which is technically the difference in the strength of gravity between two points on a body. The deformations of a body stemming from tidal forces are called tides.Gravity is a mutual force. Earth attracts the moon, and the moon will attract the Earth. However, because the oceans are so much larger than your body, they are definitely affected by the moon. There's so much more to be affected to begin with compared to tiny little you. Anyways, here's how these oceans are affected by the moon's gravitational pull in more detail.Since the relative pull of the land is less in comparison to that of water, the effect of gravitation on the water bodies is more. It should be noted that the magnitude of ant tide is determined by the relative position of the Moon, the Sun, and the Earth.To know more about tides visit:
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Can someone help me reword this?
The primary purpose of straightforward machines is they aim to reduce the amount of effort force required to perform a simple task. They are accomplished because the applied strength must act over a greater distance or longer time, resulting in the same amount of work being conducted more efficiently.
A compound machine is made up of more than one simple machine. Some compound machines are made up of only two simple machines. You can read about two examples below: the wheelbarrow and the corkscrew. Other compound machines, such as bicycles, are made up of numerous simple machines. Large compound machines, such as automobiles, may be made up of hundreds or even thousands of simple machines. Because compound machines have more moving parts than simple machines, they have to overcome more friction. As a result, compound machines are typically less efficient than simple machines.
A wheelbarrow, for example, is used to transport heavy objects. It is made up of two basic machines: a lever and a wheel and axle. Picking up the wheelbarrow handles puts effort into the lever. The load is then pushed upward by the lever. The lever increases the force, making the load easier to lift. Pushing the wheelbarrow over the ground requires effort on the part of the user. The rolling wheel rotates the axle, increasing force and making it easier to push the load. Another example is a corkscrew, which is a compound machine. It is used to pierce a cork and pull it out of a bottle's neck. It is made up of a screw and two levers. Turning the top handle twists the screw down into the cork's center. The screw then pulls upward, dragging the cork with it, when the two levers are pushed down. The levers increase and change the direction of the force.
Friction is a force that opposes motion between any two surfaces that are in contact. Because all machines have moving parts and friction, they must use some of the work done to them to overcome friction. As a result, all machines are less than 100 percent efficient. Because compound machines have more moving parts than simple machines, they have to overcome more friction. As a result, compound machines are typically less efficient than simple machines. When a compound machine is made up of many simple machines, friction can become a serious issue and generate a lot of heat. Lubricants, such as oil or grease, can be used to coat the moving parts of a machine, allowing them to slide more easily over each other.
Thus, the law of conservation of energy states that energy cannot be created or destroyed, but only converted from one form to another. This means that unless energy is added from outside, a system always has the same amount of energy. A compound machine is one that is made up of more than one simple machine. A compound machine, such as a wheelbarrow or a corkscrew, is made up of only two simple machines. Cars, for example, are made up of hundreds or thousands of simple machines. In general, compound machines are less efficient than simple machines but have a greater mechanical advantage.
Answers
The effective paraphrase of the given text is given below:
The Paraphrased TextThe main objective of simple machines is to reduce the amount of effort needed to perform a task by having the force act over a greater distance or longer time, making the work more efficient.
A compound machine, consisting of multiple simple machines, is less efficient due to the added friction from its many moving parts. For example, a wheelbarrow, made of a lever and a wheel and axle, and a corkscrew, made of a screw and two levers, are both compound machines.
Friction is the force that resists motion between two surfaces and all machines, including compound machines, use some of the work to overcome it. Energy cannot be created or destroyed but only converted from one form to another, according to the law of conservation of energy.
Despite having a greater mechanical advantage, compound machines are typically less efficient than simple machines due to increased friction and the need for lubricants to reduce heat.
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How far is 12 inches in feet?
Answers
12 inches, when converted to a foot, is equal to 1 foot.
What is unit conversion?The same attribute is expressed using a unit conversion, but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometers, feet, or any other measurement unit instead of miles.
Unit conversion is the process of changing a quantity's measurement between different units, usually using multiplicative conversion factors.
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How were models 1 and 2 useful to out investigation about whether anything happens to sound and light waves when they travel?
What information do models 1 and 2 not provide that would be useful to our investigation about whether anything happens to sound and light waves when they travel?
Answers
Models 1 and 2 are useful for understanding how sound and light waves travel through different mediums.
How were models 1 and 2 useful to out investigation about whether anything happens to sound and light waves when they travel?Model 1 and 2 were useful to our investigation because they provided visual representations of how sound and light waves travel. Model 1 showed how sound waves travel in waves and model 2 showed how light waves travel in a straight line.These models help us to understand the basic properties of sound and light waves, such as the fact that sound waves can be blocked or absorbed, while light waves can pass through objects.Models 1 and 2 do not provide information about how sound and light waves interact with different objects or materials.They do not provide information about how sound and light waves change when they travel through different mediums, such as water, air, or glass.They also do not provide information about how sound and light waves can be reflected, refracted, or diffracted.To learn more about sound and light waves when they travel refer to:
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which force is greater, the weight of the wrecking ball or the tension in the cable?
Answers
Answer: 14.25
Explanation:
tle 14.25
The weight of the wrecking ball and the tension in the cable are equal and opposite forces. When the wrecking ball is hanging vertically, its weight is balanced by the tension in the cable.
The force exerted by the weight of the wrecking ball and the tension in the cable are equal and opposite in direction, but it is difficult to say which is greater without knowing the specifics of the scenario. The tension in the cable will be equal to the weight of the wrecking ball if the cable is in static equilibrium, meaning that the net force on the wrecking ball is zero. In this case, the tension in the cable balances the weight of the wrecking ball, preventing it from falling. If the wrecking ball is in motion, the tension in the cable may be greater or lesser than the weight of the wrecking ball, depending on the motion of the ball and the direction of the tension.
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An environmental study reporting on the way temperature, water quality, and minerals affect the animals in a salt marsh would be considering which level of organization?.
Answers
It will be the organizational level of the ecosystem. Here you can see the interaction of inanimate objects and living organisms.
An ecosystem is a geographical area where plants, animals, other living things, weather and landscape work together to form a bubble of life. An ecosystem contains living or living parts and abiotic factors or non-living parts. Ecosystems are organized to better understand the framework of reference in which they are studied. They are organized from smallest to largest. Organisms, populations, communities, ecosystems. In ecology, the organizational level refers to:
Biosphere - The place where all life on Earth lives. Biome - A large community of plants and animals occupying a large habitat. Ecosystem - A biological community of interacting organisms and their physical environment.
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The chemical equation shown above represents the hydrolysis of sucrose. Under certain conditions, the rate is directly proportional to the concentration of sucrose. Which statement supports how a change in conditions can increase the rate of this reaction?
Answers
Increasing the temperature of the reaction solution can increase the rate of hydrolysis of sucrose, as higher temperatures can increase the rate of molecular motion.
What is sucrose?Sucrose is a naturally occurring carbohydrate found in plants and fruits. It is also known as table sugar, or simply sugar. It is a disaccharide composed of glucose and fructose molecules joined together by a glycosidic bond. Sucrose is the most commonly used sweetener in food and beverage production and is found in many processed foods. It is used in baking, sweetening beverages, and as a preservative in some products. Sucrose is used as an energy source for the body. It is broken down by enzymes in the small intestine, releasing glucose and fructose which are then absorbed into the bloodstream and used for energy. Sucrose has a wide variety of uses in the food industry as a preservative, flavor enhancer, and sweetener.
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A rescue helicopter lifts a 70 kg person straight up by means of a cable. The person has an upward acceleration of 0.70Â m/s2m/s2Â and is lifted from rest through a distance of 13 m.
a) What is the tension in the cable? (Answer in N)
b) How much work is done by the tension in the cable? (Answer in J)
c) How much work is done by the person's weight? (Answer in J)
d) Use the work-energy theorem and find the final speed of the person. (Answer in m/s)
Answers
(a) Tension in the cable is 735 N. (b) Work done by the tension in cable is 9555 J (c) work done by the person weight is 8998 J (d) final speed of the person is 4.33 m/s.
a) The tension in the cable can be calculated using the equation of motion:
Tension = m x a + m x g
here m, mass of person (70 kg), a upside acceleration (0.70 m/s^2), and g, a due gravity (9.8 m/s^2).
= Tension
= 70 kg x 0.70 m/s^2 + 70 kg x 9.8 m/s^2
= 70 kg x (0.70 m/s^2 + 9.8 m/s^2)
= Tension
= 70 kg x 10.5 m/s^2
= 735 N
So, the tension in the cable is 735 N.
b) The work done by the tension in the cable can be calculated using the formula:
Work = Force x Distance
here Force is tension of cable (735 N) and Distance is vertical displacement of person is lifted (13 m).
Work = 735 N x 13 m = 9555 J
So, the work done by the tension in the cable is 9555 J.
c) The work done by the person's weight can be calculated using the formula:
Work = Force x Distance
here Force is weight of person climbed.
(70 kg x 9.8 m/s^2 = 686 N) and Distance is vertical displacement of person is lifted (13 m).
Work = 686 N x 13 m = 8998 J
So, the work done by the person's weight is 8998 J.
d) The final speed of the person can be found using the work-energy theorem:
Change in kinetic energy = Work done by net force
Initial kinetic energy = 0 (since the person is lifted from rest)
Final kinetic energy = (1/2) x m x v^2
Putting the values, we get:
= (1/2) x m x v^2
= Work done by net force
= Work done by tension - Work done by weight
= (1/2) x 70 kg x v^2 = 9555 J - 8998 J
= (1/2) x 70 kg x v^2 = 657 J
= v^2
= (2 x 657 J) / (70 kg)
= 18.8 m^2/s^2
= v
= sqrt(18.8 m^2/s^2)
= 4.33 m/s
So, the final speed of the person is 4.33 m/s.
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why does the compound you just chose have the highest potential energy
Answers
Due to its many chemical bonds, which may be changed through chemical processes, glucose has the largest potential energy. In aerobic cellular respiration, one glucose molecule undergoes full oxidation to provide 38 ATPs.
An item or system can store potential energy as a result of its placement or configuration. It is a type of energy that is not being used or moving, but has the capacity to change into another type. An object's location in a gravitational field, its elasticity, or its chemical makeup can all cause potential energy to be stored in it. For instance, a spring that has been squeezed has elastic potential energy, but a weight that is held above the ground has gravitational potential energy. An object's location, mass, and the force pushing against it all affect how much potential energy it possesses.
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what is the magnetic flux through the loop when it is tilted at a 60 ∘∘ angle?
Answers
The magnetic flux going through the loop is influenced by the tilt angle and magnetic field strength.
Magnetic flux is a unit used to quantify the number of magnetic field lines that pass through a given surface. In this case, the surface is a loop and the magnetic field is tilted at an angle of 60 degrees with respect to the plane of the loop.
To calculate the magnetic flux, the tilt angle and magnetic field strength must be known. With this information, the magnetic field line density on the loop, which is inversely proportional to the magnetic flux, can be calculated.
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A light ray propagating in vacuum contains both 600nm light and 400 nm light and is incident on top of a glass cube.Compare how the two types of light travel through the block.The 600nm light travels faster than the 400nm light. The 400nm light travels faster than the 600nm light.Cannot be determined.They both travel at the same velocity,.They both travel at the same velocity, but slower than c
Answers
When a light ray propagating in vacuum contains both 600nm light and 400 nm light and is incident on top of a glass cube then 400nm light travels faster than the 600nm light so the answer is (b).
The speed of light in a medium is dependent on the refractive index of the medium, which is a function of the wavelength of the light and the properties of the medium. In general, light with a longer wavelength will travel slower in a medium than light with a shorter wavelength. This is because the longer wavelength light experiences more refraction, or bending, in the medium.
In the case of a glass cube, both the 400 nm and 600 nm light will slow down as they travel through the glass. The 400 nm light will slow down more than the 600 nm light, meaning it will experience more refraction and bend more than the 600 nm light. Therefore, the answer is (b) the 400nm light travels faster than the 600nm light.
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knowing that one day is 24 hours, how many days is 63.6 hours?
Answers
The required number of days when the hours are given and they are to be converted into days is 2.65 days.
Days and hours are the measure of time. They can be interconverted from one form to another. In this problem, we are asked to convert hours to days.
The number of hours in a day is known to be = 24 hours
So, 1 day = 24 hours
Number of days in 63.6 hours = ?
Let us convert hours to days.
The required number of days = 63.6 hours/24 hours = 2.65 days
Therefore, the required number of days when the hours are given and they are to be converted into days is 2.65 days.
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vector = -1.00 -2.00 and vector = 3.00 4.00 . what are the magnitude and direction of vector = 3.00 2.00?
Answers
The magnitude of a vector is a scalar representation of the length of the vector. To find the magnitude of a 2-dimensional vector (x, y), you can use the Pythagorean theorem:
magnitude = [tex]√(x^2 + y^2)[/tex]
In this case, for the vector (3.00, 2.00), the magnitude is:
magnitude = [tex]√(3^2 + 2^2) = √(9 + 4) = √13 = 3.6[/tex]
The direction of a vector is a measure of the angle it makes with the positive x-axis. The direction is often expressed in radians, with zero radians being the positive x-axis, and positive angles rotating counter clock wise. To find the direction, you can use the arctangent function (atan2):
direction = atan2(y, x)
In this case, for the vector (3.00, 2.00), the direction is:
direction = atan2(2, 3) = 0.93 radians (or[tex]53.13°[/tex])
So, the magnitude of the vector (3.00, 2.00) is 3.6 and its direction is 0.93 radians (or[tex]53.13°[/tex]).
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A child in an inner tube is bobbing up and down in the ocean and notices that after a wave crest passes, four more crests pass in a time of 29. 4 s and the distance between the crests is 33 m. If possible, determine the following properties for the wave. (If not possible, enter IMPOSSIBLE. )
Answers
The properties of the wave that can be determined from the given information are:
Wave velocity (v): v = d / t = 33 m / (29.4 s) = 1.12 m/s
Wave frequency (f): f = 1 / T, where T is the time for one complete wave cycle to pass a point. The time for one complete wave cycle to pass a point is not given, so the frequency cannot be determined.
Wavelength (λ): λ = v / f, where f is the wave frequency. Since the frequency cannot be determined, the wavelength also cannot be determined.
The speed at which a wave moves through any medium is known as its phase velocity. This is the speed at which any particular frequency component of the wave moves in phase. Any particular wave phase will seem to move at the phase velocity for such a component.
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a plane is flying 87 m/s north relative to the air. the wind is blowing 196 m/s east relative to the ground. determine the plane's velocity relative to the ground.
Answers
The plane's velocity relative to the ground is 214.44 m/s Northeast.
What is velocity?
Velocity is a vector quantity that measures an object's speed and direction. It is the rate of change of an objects position over time and is measured in either meters per second (m/s) or kilometers per hour (km/h). It is calculated by dividing the distance an object has traveled by the time it took to travel that distance. Velocity is used in many fields, such as physics, mathematics, engineering, and even economics. It is an important concept as it helps us to understand the motion of objects in a given environment.
plane's velocity relative can calculated using Pythagoras theorem
v = √a² + b²
v = √87² + 196²
v = 214.44 m/s
Therefore, The plane's velocity relative to the ground is 214.44 m/s Northeast.
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(1) (20 points) equivalent spring: (a) (5 points) how many degrees of freedom does this system have? (b) (5 points) draw the free body diagram for this system.
Answers
A function must have a derivative equal to 0 and a second derivative that is not equal to 0 for there to be a turning point in the function.
Up to five turning points are possible for degree 5 functions. These turning points are also referred to as extrema, stationary points, and inflection points. A polynomial of degree 5 is a function of degree 5. It is a function of type f(x) = ax5 + bx4 + cx3 + dx2 + ex + f, where a, b, c, d, e, and f are all constants. The maximum power of a variable in an equation determines the degree of a function. Because 5 is the largest power of x in this situation, the degree is 5. Up to five turning points are possible for degree 5 functions. These turning points are also referred to as extrema, stationary points, and inflection points. An inflection point is a point, and a stationary point is a point on the function graph where the slope of the graph is either 0 or undefined.
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Help me, please.
What are the separate X & Y velocities of:
A baseball hit at 10m/s at 20 degrees above the horizon, up and to the right?
A football thrown straight up at 100m/s?
A tennis ball thrown perfectly to the right off a cliff at 15m/s?
Answers
A.
The X velocity of the baseball: 10 m/s * cos(20 degrees) = 9.66 m/s to the right
The Y velocity of the baseball: 10 m/s * sin(20 degrees) = 3.11 m/s upwards
B.
The X velocity of the football: 0 m/s ( when thrown straight up)
The Y velocity of the football: 100 m/s upwards
C.
The X velocity of the tennis ball: 15 m/s to the right
The Y velocity of the tennis ball: 0 m/s ( when thrown off a cliff)
What is velocity?Velocity is described as the directional speed of an object in motion as an indication of its rate of change in position as observed from a particular frame of reference and as measured by a particular standard of time.
Velocity can be represented mathematically in the equation
V = d/t,
where V is the velocity,
d is the distance, and
t is the time.
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How does maxwell model represent
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Maxwell's model is a mechanical representation of the behavior of an ideal gas. It was conceived in the nineteenth century by James Clerk Maxwell. An ideal gas.
according to Maxwell's concept, is made up of a huge number of particles that are in continual random motion and collide with each other and the container's walls. These particles are classified as point masses, which means they have no volume or structure. The model assumes that collisions are fully elastic, which means that no energy is wasted and the particle speed remains constant. Maxwell's model may be used to predict the behavior of an ideal gas in a variety of thermodynamic states, including pressure, temperature, and volume. It also enables us
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suppose that the cost of electrical energy is $0.12 per kilowatt hour and that your electrical bill for 30 days is $60. assume that the power delivered is constant over the entire 30 days. what is the power in watts? if this power is supplied by a voltage of 120 v, what current flows? part of your electrical load is a 60 w light that is on continuously. by what percentage can your energy consumption be reduced by turning this light off?
Answers
The power is 694W
What is the most basic meaning of power?
Power can be defined as the amount of work completed in a given amount of time.
The total amount of energy used throughout the course of the 30 days must first be determined.
30 days in a month equal 720 hours.
When the cost per kwh is 0.12 and the total cost is $60 (for 720 hours), we have:
60$/month = 0.12$/Kwh*xKwh/month
Calculating the total energy used during the month
i.e. 60/0.12 will be 500Kwh
Given that power is the rate of change of energy and that the power given is constant throughout the course of 30 days, we may determine the power as follows.
P = E/t
P = 500/720 = 0.694kW = 694W
If the power is supplied by a voltage of 120 V,
I is P/V i.e. 694/120
I = 5.78A
We can deduct the power of a 60-W lamp from the power we just discovered if it makes up a portion of the electrical load.
P = 694 W - 60 W = 634 W
The new value of the energy spent during the entire month will be :
E = 0.634 kW*24(hr/day)*30(days/mo)
E = 456 kWh/mo
The percentage decrease in total energy used can be computed as follows:
ΔE =500-456/500
ΔE = 0.088 *100
ΔE = 8.8%
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underwhat conditions would mineral crystals grow the largest?
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If the magma cools slowly, then the crystals have enough time to grow and become large.
ABOUT MINERAL CRYSTALIf the growth does not experience any disturbance, then the mineral will have a perfect crystal form. But this perfect form is rarely found because in nature these disturbances are always there. Minerals that are found in nature often do not develop properly, making it difficult to classify minerals into crystallographic systems.
Instead the term crystal habit is used, the typical shape of a mineral is determined by the parts that form it, including the relative shape and size of these patches. We need to know some of the crystal stature found in certain types of minerals, so that the crystal stature can be used to determine the type of mineral, even though crystal stature is not a permanent characteristic of minerals.
Richard M Pearl (1975) divides crystal stature into 3 (three) groups, namely:
A. Elongated habits (long/streaky)
B. Flattened habits
C. Rounded habits (grain).
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What do solved examples involving velocity vs. time graphs look like?
Answers
Acceleration is the result of the graph .
What is acceleration ?
Acceleration is a measure of how quickly an object changes its velocity, or speed and direction. It is a vector quantity and is expressed in units such as meters per second squared (m/s^2), feet per second squared (ft/s^2), or g (where g = 9.8 m/s^2 is the acceleration due to gravity at the surface of the Earth). Acceleration is a result of a force acting on an object and can be calculated using Newton's second law of motion as follows: acceleration = force / mass. Positive acceleration means that the object is speeding up, while negative acceleration means that the object is slowing down. Acceleration is an important physical quantity that is used to describe the motion of objects and to calculate the velocity and position of an object over time. It plays a crucial role in many areas of science and engineering, including mechanics, rocket science, and vehicle design.
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mercury-centric models?
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Mercury-centric models refer to models or theories that center around the planet Mercury, specifically in the context of astronomy and celestial mechanics.
These models may describe the dynamics, orbit, or other physical properties of Mercury or its interactions with other celestial bodies such as the Sun or other planets. For example, a Mercury-centric model might describe the planet's orbit and how it evolves over time due to the gravitational influence of other bodies in the Solar System. These models play a critical role in our understanding of the Solar System and its evolution over time.
Mercury-centric models are important because they help us understand the origin and evolution of the planet and its place in the Solar System. These models take into account various physical properties of Mercury such as its size, mass, and orbit, as well as the gravitational influence of other bodies in the Solar System, such as the Sun and the other planets.
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true or false: the parallelogram law for the addition of forces states that two forces acting on a particle are replaced by a single force, called their resultant, obtained by drawing the diagonal of the parallelogram with sides greater than the given forces.
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It is True that, the parallelogram law for the addition of forces states that two forces acting on a particle are replaced by a single force, called their resultant, obtained by drawing the diagonal of the parallelogram with sides greater than the given forces.
What is Particle?
Particle is a branch of physics that studies the properties and interactions of particles, which are the fundamental constituents of matter and radiation. Particles are studied in the context of quantum field theory, which is a theoretical framework describing the fundamental forces of nature.
Therefore, It is True that, the parallelogram law for the addition of forces states that two forces acting on a particle are replaced by a single force, called their resultant, obtained by drawing the diagonal of the parallelogram with sides greater than the given forces.
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