For a woman walks a distance of 360 m with an average speed of 1.6 m/s, the time taken is 3.75 minutes.
The formula for time is given as [Time = Distance ÷ Speed].
It can be measured in terms of seconds, minutes, hours, days, weeks, months, and years. SI unit for time is seconds.
Speed describes the distance travelled divided by the time taken to cover the distance.
The distance is 360 m.
The speed is 1.6 m/s.
Time is distance/speed.
Time = 360/1.6
Time = 225 seconds.
Time is 3.75 minutes.
To know more about the Time, here
https://brainly.com/question/13912013?referrer=searchResults
#SPJ4
What was the acceleration of the javelin during the throw? Assume that it has a constant acceleration. Express your answer to two significant figures and include the appropriate units. A javelin thrower standing at rest holds the center of the javelin behind her head, then accelerates it through a distance of 70 cm as she throws. She releases the javelin 2.0 m above the ground traveling at an angle of 30° above the horizontal Top-rated javelin throwers do throw at about a 30 angle, not the 45 you might have expected because the biomechanics of the arm allow them tothrow the javelin much faster at 30 °than they would be able to at 45. In this throw, the javelin hits the ground 55 m awayRequired:What was the acceleration of the javelin during the throw? assume that it has a constant acceleration?
Let the speed with which the javelin was thrown be u Angle of throw (θ) = 30°,Vertical acceleration (ay) = -9.8 m/s2,Distance over which the javelin was accelerated before throwing (S) = 70 cm = 0.7 m, a = 418.22 m/s2.
How is the javelin throw calculated?The throw's length is calculated by measuring it to the closest centimeter from the mark's location to the inner surface of the scratch line (the runway opposite of the line).The javelin mark that is closest to the scratching line should be where the zero side of the tape is placed.
What physical principles govern javelin throw?The drag force as well as the lift force are the forces pushing against the javelin as it moves.The lift force operates vertically to the axis of the flight, whereas the drag force generally functions as a resistive force or acts against the path of the flight.
To know more about speed visit:
https://brainly.com/question/8011798
#SPJ4
ANSWER ASAP:
Two sound waves arrive at the same place at the same time and become amplified. Which type of wave behavior is exhibited?
A, Diffraction
B, Refraction
C,Reflection
D, Interference
The wave behavior exhibited will be diffraction. Then the correct option is A.
What is the Diffraction?Diffraction is the interfering or twisting of waves via an aperture into the area that is geometrically in the shadow of the obstruction or aperture. Effectively, the wave's secondary data collection is the diffracting element or aperture.
Diffraction is the technique by which a wavelength of light or other wave system is dispersed as a result of passing through a small aperture or across an edge. Usually, interference between the generated waveforms occurs in conjunction with diffraction.
Two sound waves arrive at the same place at the same time and become amplified.
The wave behavior exhibited will be diffraction.
Thus, the correct option is A.
More about the Diffraction link is given below.
https://brainly.com/question/16096548
#SPJ1
a child rides on a merry-go-round, traveling from location a to location d at a constant speed. what is the direction of the child's average velocity between a and d? take the origin to be the center of the merry-go-round.
The direction of the child's average velocity between locations A and D on the merry-go-round will be in the direction of the displacement of the child, which is the change in position from location A to location D.
If the child is traveling at a constant speed, the average velocity will be in the same direction as the actual velocity at any given moment. The actual velocity of the child is always tangent to the circular path of the merry-go-round, and so the average velocity will also be tangent to the circular path. This means that the direction of the average velocity will be perpendicular to the line connecting the origin (center of the merry-go-round) to the position of the child.
The direction of the average velocity depends on the direction of the child's movement along the circular path of the merry-go-round.
Read more about Average velocity:
https://brainly.com/question/29483294
#SPJ4
a barge 20 ft wide and 40 ft long is loaded with rocks as shown. assume that the center of gravity of the rocks and barge is located along the centerline at the top surface of the barge. if the rocks and the barge weigh 400,000 lbf, will the barge float upright or tip over?
According to the hydrodynamic stability, the metacentric height is positive. Thus, the barge is will float stable.
Draft= W / Aρ
Here weight of barge is W, area of the barge is A, and density of water is ρ.
Substitute 400,000 lbf for W, 20 ft for l, 40 ft for b, and 62.4 lbf ft³.
Draft= 400000 / (lxb)×624
= 400000/(20×40)×62.4
= 8.0128ft
≈ 8ft
Thus, the depth of draft is 8.0 ft. Hence, it is satisfactory.
Determine the metacentric height (GM) using the formula:
GM= I/v - C.G
=. bxd³/12 / (hxbxd) - (h - h/2)
Here, moment of inertia is I, volume of the barge is V, center of gravity is CG, and height is h, width is b, and depth is a respectively.
Substitute 20 ft for d, 40 ft for b, 4.0 ft for C.G, and 8.0 ft for h
40x20³/12 / (8.0x40x20) - (8.0- 8.0/2)
=4.167-4.0
= 0.167 ft
Thus, the metacentric height is 0.167 ft.
Learn more about Metacentric here:
https://brainly.com/question/24222109
#SPJ4
in the n-t coordinate system, the origin is located on the particle group of answer choices true false
True, in the n-t coordinate system, the origin is located on the particle .
What is the NT coordinate system ?
Coordinates in the normal (n) and tangential (t) planes are frequently employed when the motion's path is known. The origin of the n-t coordinate system is on the particle (the origin moves with the particle). The t-axis is positive and tangent to the particle's path (curve) during the time it is being studied.
The genesis point in the normal-tangential coordinate system is the particle itself. The n-direction is always 90 degrees counterclockwise from the t-direction, which is the direction in which motion is now taking place. Unit vectors in the t and n directions are represented by the u-t and u-n vectors, respectively.
To learn more about coordinate system use link below:
https://brainly.com/question/25072940
#SPJ4
the voltage produced by a generator is zero for some period of time for the ? -phase power system. the voltage falls to zero ? each cycle.
In a three-phase power system, the voltage produced by a generator may fall to zero for some period of time each cycle. This is normal and occurs as a result of the alternating nature of the power supply.
The voltage is periodically zero because it is a sinusoidal waveform, with equal positive and negative values, that completes one full cycle every 1/f second, where f is the frequency of the AC voltage.
Voltage, also known as electric pressure, electric tension, or (electric) potential difference, is the contrast in electric potential between two points.
In a static electric field, it relative to the work needed per unit of charge to move a test charge between the two points.
To know more about the Voltage:
https://brainly.com/question/29445057
#SPJ4
if you changed the source wavelength to a longer wavelength, e.g. 600nm, how would the distance between the zero order maximum and the third order maximum change?
If you change the source of wavelength to a longer wavelength (e.g. 600 nm), the distance between the zero order maximum and the third order maximum will decrease, since the numerator (λ) has increased.
The distance between the zero order maximum and the third order maximum in a diffraction pattern depends on the wavelength of the light and the size of the diffraction grating.
If you change the source wavelength from a shorter wavelength to a longer wavelength, the distance between the zero order maximum and the third order maximum will decrease. This is because the distance between the maxima in a diffraction pattern is inversely proportional to the wavelength of the light.
In mathematical terms, if 'd' is the distance between the maxima, 'λ' is the wavelength, and 'n' is the order of the maximum, then the relationship between these quantities is given by:
d = λ / (n × sinθ)
To know more about wavelength here
https://brainly.com/question/4112024
#SPJ4
suppose the 50 turn coil in the figure below lies in the plane of the page and originally has an area of 0.260 m2. it is stretched to have no area in 0.100 s. what is the magnitude (in v) of the average value of the induced emf if the uniform magnetic field points into the page and has a strength of 1.35 t?
The average induced emf is when the magnetic field B increases from 0. 10T to 0. 35T in 2 milliseconds.
Where is the magnetic field?The S pole of the Earth's magnetic field, which is close to its geographic north pole (see Magnetic North Pole), and the N pole, which is close to its geographic south pole, roughly form a magnetic dipole.
What is magnetic field and its unit?A magnetic field is produced in the area surrounding a magnetic dipole or a moving charge. The SI unit of field intensity for magnetic fields is the Tesla (T). The region where a magnet's magnetic force may be felt is known as the magnetic field.
To know more about magnetic field visit:
brainly.com/question/24397546
#SPJ4
ball a has half the mass and eight times the kinetic energy of ball b. what is the speed ratio va/vb?
The speed ratio va/vb is equal to 4/1, assuming K₁ is the kinetic energy of ball a and K₂ is the kinetic energy of ball b.
When an object is moving, it gains kinetic energy. Kinetic is an adjective that means relating to motion. So, yeah, kinetic energy is the energy acquired by a moving object.
The equation for kinetic energy is K = 1/2 · m · v², where K is the kinetic energy, m is the mass, and v is the velocity (sometimes called "speed").
Suppose that K₁ is the kinetic energy of ball a and K₂ is the kinetic energy of ball b. Therefore, [tex]K_1/K_2 = 8K_1/K_2 = \frac{8\cdot 0.5(1/2m)(v^2)}{0.5(m)(v^2)}=\frac{2mv^2}{1/2mv^2}\:.[/tex]
Let the masses and the exponents be ignored. We're now left with 2va and 1/2vb (va = the velocity of ball a; vb = the velocity of ball b):
[tex]\frac{2mv^2}{1/2mv^2}=\frac{2va}{1/2vb}=\frac{4va}{vb}\:.[/tex]
The speed (velocity) ratio va/vb then is equal to 2/(1/2) or 4/1.
Learn more about kinetic energy at https://brainly.com/question/30176483.
#SPJ4
ing Figure 8.9 Explain the following using F= ma a A racing car has a powerful engine and is made of e le strong but lightweight material. b A car with a small engine can still accelerate rapidly.
The acceleration is inversely related to the mass of the engine.
Why does the small engine car accelerate rapidly?
We have to note that we must look at the law that have been stated by Newton for the motion of an object. That law states that the relationship between the force that is acting on the object and the acceleration of the object can be given by the formula; F = ma
F = force of the object
m = mass of the object
a= acceleration of the object
It then follows that;
a = F/m
The larger the mass, the lesser the object would accelerate.
Learn more about acceleration:https://brainly.com/question/12550364
#SPJ1
my 1956 chevy is currently an automatic but i want to make it a 5 speed manual /can i buy just a clutch pedal awing assembly or do i need to buy combo brake and clutch assembly kit?
My 1956 chevy is currently an automatic but I want to make it a 5-speed manual, You need to buy a combo brake and clutch assembly kit. This should include the clutch pedal, linkage, and other parts needed to make the conversion.
You need to make sure the engine and transmission are compatible with the new assembly. Depending on the model of the 1956 Chevy, you may also need to purchase a different flywheel, bell housing, and clutch to ensure proper compatibility.
In addition, you may need to make sure that the cross member and transmission mount are compatible with the new clutch and transmission. You will also need to bleed the clutch housing and lines to ensure that the brakes and clutch are working correctly. Additionally, you will need to make sure the shift linkage is correctly adjusted.
To know more about the 1956 Chevy refer to the link brainly.com/question/30074911
#SPJ4
A semicircle of radius a is in the first and second quadrants, with the center of curvature at the origin. Positive charge +Q is distributed uniformly around the left half of the semicircle, and negative charge −Q is distributed uniformly around the right half of the semicircle in the following figure.(Figure 1) Figure1 of 1A semicircle of radius a is in the first and second quadrants of the xy plane, with the center of curvature at the origin. Charge +Q is distributed uniformly around the left half of the semicircle and charge -Q is distributed uniformly around the right half of the semicircle. A semicircle of radius a is in the first and second quadrants of the xy plane, with the center of curvature at the origin. Charge +Q is distributed uniformly around the left half of the semicircle and charge -Q is distributed uniformly around the right half of the semicircle. Part A What is the magnitude of the net electric field at the origin produced by this distribution of charge? Express your answer in terms of the variables Q, a, and constant k.
The magnitude of the net electric field at the origin produced by this distribution of charge is zero.
The magnitude of the net electric field at the origin produced by the charge distribution described in the problem can be calculated using Coulomb's law. According to Coulomb's law, the electric field created by a point charge Q at a distance r from the charge is proportional to the magnitude of the charge and inversely proportional to the square of the distance.
In this problem, the net electric field at the origin is the vector sum of the electric fields created by each half of the semicircle. The electric field created by the left half of the semicircle with charge +Q is in the positive x-direction and the electric field created by the right half of the semicircle with charge -Q is in the negative x-direction. These two fields cancel each other out at the origin, resulting in a net electric field of zero.
Learn more about Coulomb's law
brainly.com/question/29124480
#SPJ4
3-i) an unknown mass of m kg attached to the end of an unknown spring of k n/m has a natural frequency of 45 hz. when an additional 0.47 kg mass is added to m, the natural frequency is lowered to 41 hz. determine the unknown mass m (in kg) and the spring constant k (in n/m).
The equation f = 1/(2)* sqrt(k/m) can be used to determine the natural frequency of a spring-mass system. Thus, the spring constant is around 95.6 N/m, and the unknown mass is roughly 0.163 kg.
When a physical system is disrupted from its equilibrium state and allowed to move freely, it will oscillate at a frequency known as its natural frequency. The natural frequency of a spring-mass system is dependent on both the mass of the item and the spring's spring constant. The system's behaviour in reaction to various disturbances can be predicted using the natural frequency. For instance, if the system is subjected to an external force at or near its natural frequency, resonance will occur, causing the system to oscillate with a considerable amplitude. Natural frequencies are crucial in a variety of disciplines, such as physics, acoustics, and mechanical engineering.
Learn more about "natural frequency." here:
https://brainly.com/question/28962504
#SPJ4
A hot-air balloon is ascending at the rate of 12 m/s and is 65 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground?
a) The package takes 2.45 seconds to reach the ground.
b) It hits the ground with a velocity of -24.1 m/s.
To answer this problem, we'll use the equation of motion for a freely falling object:
[tex]d = v_{0}t + 0.5at^{2}[/tex], where d is the distance fallen, [tex]v_{0}[/tex] is the initial velocity (0 m/s in this case), a is the acceleration due to gravity (-9.8 m/s²), and t is the time elapsed.
We can use this equation to find t:
d = 0.5(-9.8)t²
65 = -4.9t²
t = √(65 / -4.9) = 2.45 s
Using this time, we can find the final velocity:
[tex]v = v_{0} + at[/tex]
v = -9.8 * 2.45
v = -24.1 m/s
Read more about Kinematics:
https://brainly.com/question/29040817
#SPJ4
what could the future of space exploration look like?
The future of space exploration is exciting and holds a lot of potential. Here are some developments that we might see in the coming years:
Increased privatization of space exploration: Private companies like Elon Musk's SpaceX and Jeff Bezos' Blue Origin are already making significant investments in space technology and are playing an increasingly important role in space exploration.
Return to the Moon: NASA is planning a return to the Moon by 2024 as part of its Artemis program, with the goal of establishing a sustainable presence on the Moon and using it as a stepping stone for future missions to Mars.
Human missions to Mars: In the next few decades, it's possible that we may see human missions to Mars. These missions would aim to establish a permanent human presence on the Red Planet and unlock its secrets.
Advancements in space technology: In the future, we may see advancements in propulsion technology, such as nuclear-powered engines, that could make space travel faster and more efficient. We may also see the development of more advanced robotics and artificial intelligence systems to help with tasks such as exploring and mapping other planets.
Increased international cooperation: Space exploration is becoming an increasingly international endeavor, with countries from all over the world working together on missions and sharing data and technology.
Overall, the future of space exploration is bright, and it's an exciting time to be alive as we continue to push the boundaries of our knowledge and explore the wonders of the universe.
For such more question on space
https://brainly.com/question/29727760
#SPJ4
Our solar system is in the Milky Way galaxy. In another galaxy a planet, P, has a circular orbit equal to that of the Earth's, that is, the orbits have the same radius. The masses of the suns in the two galaxies are Sg and Sp respectively and planet P completes its orbit in half the time it takes the Earth. (i) Show that the mass of the Sun in the Earth's orbit is four times the mass of the sun in Planet P's orbit.
(ii)Show that the period of the planet, P, is given by T = 2₁√ √/GM₂ where Mp is the mass of the planet and r the radius of the orbit
correct application of fermats theorem to fluid dynamics
Fermat's theorem, also known as the principle of least time, states that the path taken by light or any other wave between two points is the path that minimizes the time taken. In fluid dynamics, this theorem can be applied to the flow of fluids in pipes or channels.
The basic idea is that the fluid will take the path that minimizes the time it takes for it to travel from one point to another. In other words, the fluid will follow the path of least resistance, where resistance is determined by the fluid's velocity and the diameter of the pipe or channel.
For example, in a fluid flow system with multiple branches or turns, the fluid will tend to follow the path with the smallest diameter or the least amount of resistance, as this will be the quickest path for the fluid to take.
This can be important in designing fluid systems, as it can affect the flow rate, pressure, and energy consumption of the system.
In summary, the correct application of Fermat's theorem to fluid dynamics involves considering the time it takes for a fluid to travel from one point to another and selecting the path that minimizes that time. This can help in optimizing fluid flow systems and improving their efficiency.
To know more about Fermat's Theorem:
https://brainly.com/question/8978786
#SPJ4
an intersection that has signals or signs to assign the right of way is called
a. a registered intersection.
b. an unregistered intersection.
c. a controlled intersection.
d. an uncontrolled intersection.
A controlled intersection is one that contains signals or signs to designate the right of way.
Describe signal.An electrostatic or electric current known as a signal is used to transfer information from one device or networks to another. Although it can sometimes take other dimensions, such as current, a signal in electronics frequently consists of a time-varying temperature that is also a electromagnet carrying information.
What characteristics do signals have?They can be deterministic or random, deterministic or agnostic, continuous or continuous time, both analog and digital, periodic or nonstationary, finite or infinite. They can also be separated into groups based on the causality and symmetry of those groups. An optimum impulse signal is one that is 0 everywhere else but infinitely high at the origin.
To know more about signals visit:
https://brainly.com/question/16248997
#SPJ4
a worker at the top of a 594-m-tall television transmitting tower accidentally drops a heavy tool. if air resistance is negligible, how fast (in m/s) is the tool going just before it hits the ground?
The tool is going at a speed of 339 m/s just before it hits the ground if air resistance is negligible.
The speed of the falling object just before it will hits the ground can be calculated using the equation of motion:
v = sqrt(2gh),
where by v is the final velocity, g is the acceleration due to gravity (9.8 m/s^2), and h is the height of the tower (594 m).
So, v = sqrt(2 * 9.8 * 594) = sqrt(11,532.8) = 339 m/s.
Therefore, the tool is going at a speed of 339 m/s just before it hits the ground.
Learn more about the velocity of a falling object at:https://brainly.com/question/3522016
#SPJ4
Help please!!! List five general things we get from natural resources?
Answer:
Paper, clothing, fuel, cans, and jewelry
Explanation:
neutron diffraction, like x-ray diffraction, is useful in some kinds of structure determinations. what is the de broglie wavelength of a neutron (mass
The neutron's de Broglie wavelength is 75 pm, or = h/mv, where is the neutron's de Broglie wavelength, h is Planck's constant, m is its mass, and v is its velocity.
What can be determined using neutron diffraction?A crystallographic technique called neutron diffraction (ND) is utilised to ascertain the atomic and/or magnetic structure of certain materials (Howard and Kennedy, 1994).
How is radiation from neutrons measured?Using the induced activity method and a helium chamber, the neutron measurements were carried out. Measurements of the energy spectra of gamma emitted in decays of the generated nuclei were used to identify the radioisotopes produced during emission of the therapeutic beams.
To know more about wavelength visit:-
https://brainly.com/question/29243920
#SPJ4
what do each of the 4 layers of the sun do
The four layers of the sun are the Core, the Radiative Zone, the Convective Zone and the Photosphere.
What do you mean by the Sun?
The Sun is the star at the center of our solar system, which is the source of light and heat for the planets in our system. It is a medium-sized star composed mainly of hydrogen and helium.
The four layers of the sun are:
1. The Core: The core is the innermost layer of the Sun and is made up of hot, dense plasma. It is the source of the Sun's energy, generating heat and light from the fusion of hydrogen atoms into helium.
2. The Radiative Zone: This layer lies between the core and the convective zone. It is responsible for transferring the heat generated in the core outward.
3. The Convective Zone: This layer lies between the radiative zone and the photosphere. It is responsible for convecting the heat generated in the core outward.
4. The Photosphere: This is the layer of the Sun that we see from Earth. It is the visible surface of the Sun and is responsible for emitting light and heat.
To know more about the Sun,
https://brainly.com/question/12864661
#SPJ1
the advantage of a resistor is a higher power rating. a. wire-wound b. metal glaze c. carbon film d. metal film
The wire wound resistor has the highest power rating. Option a is the correct answer.
Resistors are the most fundamental and commonly used of all the electronic components, to the point where they are almost taken for granted but they play a vital role within a circuit.
A wirewound resistor is an electrical passive device that limits or restricts current flow in a circuit. Wirewound resistors are constructed using a conductive wire. The conductive wire is then wound around a non-conductive core.
Wire-wound Resistor have metallic bodies for heatsink mounting, very high wattage ratings.
To know more about the Wire-wound Resistor, here
brainly.com/question/23969702
#SPJ4
suppose that you are listening to music playing from two sound speakers. one is emitting a harmonic wave y1 and the second is emitting a harmonic wave y2 . assume both waves produce an intensity i1 when they are on individually. what is the intensity at a point equidistan
The distinction between sounds of same pitch and volume is referred to as quality. By dividing the amount of energy transferred by the area covered, it transfers energy.
Which is greater, the wave's strength or the amount of energy it contains?The intensity of a sound wave is the quantity of energy that travels through a certain region of a medium in one unit of time. The speed with which energy is transferred through a medium depends on the amplitude of the vibrations of its constituent particles; the higher this rate, the more powerful the sound wave.
If two waves with the same amplitude move toward one another and finally overlap, what will happen?When the waves eventually overlap, a wave with twice the amplitude results. then proceed without being impacted by the interaction. The pulses are claimed to interfere, and interference is the term for this phenomena.
To know more about sound wave visit :
https://brainly.com/question/11797560
#SPJ4
bringing your thumb and index together in a pinching motion (for zooming in and out) is an example of
Bringing your thumb and index together in a pinching motion (for zooming in and out) is an example of gesture.
A gesture is a movement of the hand, arms, or other body part that is intended to indicate or emphasize something, often when speaking. In other words, gestures are body movements that express something. For example, a wave of the hand is a common gesture used to say hello to someone.
Gestures allow individuals to communicate a variety of feelings and thoughts, from contempt and hostility to approval and affection, often together with body language in addition to words when they speak.
To know more about the Gestures, here
brainly.com/question/29560264
#SPJ4
an excimer laser produces radiation at 157 nm, and optics with a numerical aperture of 1.4 is available. what is the smallest size of feature you could make in a resist? how might smaller final features be made in the underlying silicon with the same optics?
A 157 nm exim laser emits light, and 1.4 numerical aperture optics are provided. What would be the smallest feature you could create?
Radiation definition?Electromagnetic waves or particles are emitted as energy. Radium, cosmic rays from space, medical x-rays, or energy released by a radioactive unstable version of a chemical substance that emits radiation because it begins to break down and becomes more unstable are a few common sources of radiation.
hazardous external risk. "Beta burns" can result from beta particles partially penetrating skin. Alpha rays cannot pass through healthy skin. A human can be penetrated by gamma and x-rays, which harm the cells in the path.
Describe cosmic rays?They are energetic particles that travel through space at velocities close .
To know more about radiation visits :
https://brainly.com/question/13934832
#SPJ4
an adiabatic closed system is accelerated from 0 m/s to 54 m/s. determine the specific energy change of this system, in kj/kg.
E=(v22-v12)/2 can be used to calculate the specific energy change from the change in velocity. Put the specified energy change (e=0.578 kJ/kg) to find the supplied values.
An adiabatic closed system is what?DEFINITION: A system is said to be adiabatic if no thermal energy (heat) crosses the boundaries (in practice, this is accomplished through the use of insulation, so this is often also called an "insulated" system).
How does the adiabatic process work in a closed system?
A gas-filled cylinder that is closed by a piston can roughly represent a closed adiabatic system. Now that the gas is being compressed swiftly, heat transfer to the environment may be disregarded, and for the duration of the compression, an approximative adiabatic system is formed.
To know more about velocity visit:
https://brainly.com/question/19979064
#SPJ4
what was the experimentally determined value of knag from the study described in the passage? 0.02 m-1 0.01 m-1 20 m-1 50 m-1
The experimentally determined value of knag from the study described in the passage is 50 as a slope.
Since, according to Equation 1, the slope of the graph in Figure 2 is the value of KNAG. The slope is [tex]\frac{\Delta y}{\Delta x}[/tex] =[tex]\frac{2 - 1}{0.020 - 0.00}[/tex] = [tex]\frac{1}{0.020}[/tex] = 50.
Slope is calculated by dividing the "vertical change" by the "horizontal change" between any two distinct points on a line. The ratio can alternatively be expressed as a quotient, which yields the same result for any two separate locations on the same line ("rise over run"). A negative "rise" indicates a falling line. A road surveyor may judge that the line is useful, or it may show up in a diagram of a road or a roof as a description or a design. A line is said to be expanding if it climbs from left to right.
Learn more about slope
brainly.com/question/3605446
#SPJ4
a baseball is thrown straight up at a speed of 30.0 m/s. how much time will elapse for the ball to return to the ground?
The time it takes for the ball to return to the ground is approximately 3.06 seconds.
What is the resistance?Resistance is the opposition to the flow of an electric current, or the opposition to any change. It is measured in ohms and is denoted by the symbol Ω.
When a baseball is thrown straight up, it follows a parabolic path under the influence of gravity. At the highest point of its trajectory, the baseball momentarily comes to rest before falling back down to the ground. To find the time it takes for the ball to return to the ground, we can use the kinematic equations of motion.
The first step is to determine the initial velocity and the final velocity of the ball at the highest point of its trajectory. At the highest point, the ball momentarily comes to rest, so its final velocity is zero. The initial velocity of the ball is 30.0 m/s (assuming that air resistance is negligible).
The kinematic equation that relates the initial velocity, final velocity, acceleration, and time is:
[tex]\mathrm{v_f = v_i + a \times t}[/tex]
where [tex]\mathrm{v_f}[/tex] is the final velocity, [tex]\mathrm{v_i}[/tex]is the initial velocity, a is the acceleration (due to gravity), and t is the time.
At the highest point of its trajectory, the ball reaches a height of
[tex]\mathrm{h =(v_i)^2 / (2 \times g) }[/tex]
where g is the acceleration due to gravity (9.81 m/s²).
This is the maximum height that the ball reaches, and it takes the ball the same amount of time to reach this height as it does to fall back down to the ground.
Using the initial velocity and acceleration due to gravity, we can calculate the maximum height reached by the ball:
[tex]\mathrm{h =(v_i)^2 / (2 \times g) }[/tex]
= (30.0 m/s)^2 / (2 * 9.81 m/s^2)
= 45.9 m
The time it takes for the ball to reach this height is given by the kinematic equation:
[tex]\mathrm{h = v_i \times t + (1/2) \times a \times t^2}[/tex]
Rearranging and solving for time, we get:
[tex]\mathrm{t = (v_f - v_i) / a = - v_i / a}[/tex]
where the negative sign indicates that we are looking for the time it takes for the ball to return to the ground, which is the time it takes to fall from the maximum height.
Substituting the values, we get:
t = - (30.0 m/s) / (-9.81 m/s²) = 3.06 s
Therefore, the time it takes for the ball to return to the ground is approximately 3.06 seconds.
To learn more about resistance from given link
brainly.com/question/17563681
#SPJ4
if it is 10:00 a.m. in miami, florida (eastern time zone), what time is it in los angeles, california, located 3 time zones to the west in the pacific time zone? question 7 options: 2 p.m. 8 a.m. 1 p.m. 7 a.m.
Miami is in the Eastern Time Zone, which is 3 hours ahead of the Pacific Time Zone. So, if it is 10:00 a.m. in Miami, it would be 7:00 a.m.
In Los Angeles, California. This can be calculated by subtracting the time difference of 3 hours from the time in Miami.
It's important to note that Daylight Saving Time (DST) is observed in some parts of the United States, including Florida but not California. During DST, the time is advanced by 1 hour to make better use of longer daylight hours. However, it is not specified whether DST is in effect for Miami in this question. If DST is in effect, then the time in Miami would be 9:00 a.m. instead of 10:00 a.m., and the time in Los Angeles would be 6:00 a.m.
Learn more about Time Zone:
brainly.com/question/3818424
#SPJ4