2. If a person pulls on a cart to the right with a force of 7 N and another person pulls to the left with a force of 13
N, what is the net force? Is it balanced or unbalanced? Label picture with direction arrows and numbers.
13N
a. net force =
b. Is it balanced or unbalanced?
C. How could the two people make their forces balanced?
7N
Answers
Answer:
1. Net force= 6 N to left
2. Unbalanced
3. Both people must apply same magnitude of forces in opposite direction which causes net force to be 0.
Explanation:
Since both forces have opposite direction then we have to subtract the magnitude and consider the direction of vector that has greatest magnitude. In this case, the left side (13N) has more magnitude than the right side (7N). Hence:
[tex] \displaystyle{ \sum \vec F = 13 \: \text{N}- 7\: \text{N}= 6 \: \text{N to left}}[/tex]
The vector arrow of net force will point to left side with magnitude of 6 N.
Since the net force is not zero. This means that the force is not balanced as an object still changes its motion from resting to moving. A balanced force would mean the net force is zero and an object will always remain as same condition. This can be referred to first Newton's law of motion.
We can make the force balanced by having both people acting same magnitude of force in opposite direction. The equation must result in:
[tex] \displaystyle{ \left | \vec F \right | = \left| - \vec F \right| }[/tex]
Magnitude of forces must equal for both sides and also have to act in opposite direction which causes net force to be zero:
[tex] \displaystyle{ \sum \vec F = 0}[/tex]
Related Questions
What’s the first step you should take wen working to create a work life balance
Answers
The steps to achieve a work-life balance, one should manage their time well, establish limits, pay attention to their health, and enjoy their work.
How can one balance work and life?The state of equilibrium where a person equally priorities the responsibilities of their career and their personal life is known as work-life balance. Because both are significant, neither should be ignored. Common causes of a bad work-life balance include the following: expanded obligations at work. putting in more hours.
How do employees respond to work-life balance?An ACAS analysis on work-life balance and flexible working shown how a poor balance can cause absences, poor productivity, and stress. Strict regulations, an excessive workload, a hostile work environment, deadline pressure, and a lack of job security are some organisational variables that interfere with work-life balance.
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How can we relate Force and Weight? What are their differences?
Answers
Force and weight are related in that weight is a type of force. Specifically, weight is the force exerted on an object due to gravity. It is measured in units of force, such as newtons (N) or pounds (lb).
Weight is a scalar quantity, which means it has magnitude but no direction. It is determined by the mass of an object and the acceleration due to gravity.
The formula for weight is:
Weight = mass x gravity (W=mg)
On the other hand, Force is a vector quantity, which means it has both magnitude and direction. Force can be described as the push or pull on an object. It can be due to a variety of causes, such as friction, tension, or pressure. It is also measured in units of force, such as newtons (N) or pounds (lb).
So, to relate force and weight, weight is a force that acts on an object due to gravity, whereas force can be any kind of push or pull on an object, and weight is one of them.
To conclude, weight is a force that is exerted on an object due to gravity, while force is a more general term that can refer to any type of push or pull on an object. The key difference between the two is that weight is a scalar quantity while force is a vector quantity.
Hope This Helps You!
A transformer is opperating at a power of 508 w. The primary coil has 17 A of current 88 turns, the secondary coil has 42 turns. What is the voltage in the
secondary transformer? Round to 2 decimal places.
Answers
The voltage in the secondary transformer will be 14.26V.
How can you tell the difference between a transformer's primary and secondary windings?Primarily wound is always on the input side. The side connected to the voltage source is always on this side. Secondary windings are always the output side. Always connected to the load is this side.
Given, Power = 508 W
current in primary coil, i = 17A
number of turns in primary coil, N1 = 88
number of turns in secondary coil, N2 = 42
by using power formula, P = Vi voltage of primary coil can be calculated,
P = V1×i
508 = V1 × 17
V1 = 508/17
V1 = 29.88 V
now voltage of secondary coil, V2 = (N2/N1) × V1
V2 = (42/88)×29.88
V2 = 1254.96/88
V2 = 14.26 V
The voltage in the secondary transformer will be 14.26V.
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to move a figure in any direction without rotation
Answers
Translation is one of geometry transformation which is used to move a figure in any direction without rotation.
Definition of Geometry TransformationTransformation means changing a structure to increase, decrease or rearrange its elements. Meanwhile, geometry means a branch of mathematics that explains the nature of lines, angles, planes, and space.
Based on these two definitions, geometric transformations can be concluded as changes in the shape of a line, angle, space, and plane.
In everyday life, this geometric transformation is usually used to create works of art and architectural designs.
About Translation (Shift)Translation or shift is a type of geometric transformation where there is a displacement or shift from a point to a certain direction in a straight line plane. As a result, every plane in the straight line will also be shifted in a certain direction and distance.
Translation basically only changes the position, not the shape and size of the field.
A simple example of translation is an event that occurs on a slide. Where the same person with a field changes positions from the starting point (start of the slide) and the ending point (end of the slide). Another example is a vehicle traveling on a straight road, from this incident it can be seen that the vehicle which is an object does not change size but only changes places.
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Convert 1.5 days to s
Convert 5.2 ft to m
Convert 3600 s to hr
Convert 10.2 m to ft
Convert 305 g to kg
Convert 180 pm to m
Convert 73 kg to g
Convert 1,366 s to min
Convert 86,000 m to km
Please answer these and SHOW ALL WORK, please please please show ALL WORK. Need this done right now please help! Thank you so much!
Answers
According to the question, the answer of the given convert will be: 1.5 days = 36 hours, 5.2 ft = 1.58 m, 3600 s = 1 hr,10.2 m = 33.46 ft, 305 g = 0.305 kg, 180 pm = 0.18 m, 73 kg = 73000 g, 1,366 s = 22.77 min, 86,000 m = 86 km.
What is convert?
Convert is a term used to describe the process of changing one type of data into another. This could include changing a file format, changing a text document into a spreadsheet, or converting a physical document into a digital file. It is a useful tool in many industries and is often used to make sure that data is stored in a standard format, making it easy to access and use. Convert is used in a variety of settings, including media, accounting, and business. It is also used to help ensure data security and accuracy.
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For G60 Galvanized tubing, i temperature of the urface important to apply a clear coat?
Answers
Yes it is important that the temperature of the surface important to apply a clear coat for G60 Galvanized tubing.
The end of a steel sheet (either hot- or cold-rolled) is sheared and welded to the preceding coil to form one continuous coil.A high-performance tension leveler is used to straighten the strip, resulting in excellent flatness.
The strip is dipped in an alkali bath and brushed for preliminary degreasing, and then undergoes alkaline electrolytic degreasing. This removes impurities on the material surface that could harm the zinc coating. The strip is then dipped in a acidic bath to activate the surface.
The zinc-coated strip is given various chemical treatments according to intended use, including phosphate treatment for excellent paintability, and chromate free special treatment for good corrosion resistance.
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When reggie stepped up to the plate and hit a 0. 150-kg fast ball traveling at 36. 0 m/s, the impact caused the ball to leave his bat with a velocity of 45. 0 m/s in the opposite direction. If the impact lasted for 0. 002 s, what force did reggie exert on the baseball?.
Answers
When reggie stepped up to the plate and hit a 0. 150-kg fast ball traveling at 36. 0 m/s, the impact caused the ball to leave his bat with a velocity of 45. 0 m/s in the opposite direction. If the impact lasted for 0. 002 s, the force did reggie exert on the baseball is 6075 N.
The force can be calculate as follows:
assuming that the ultimate direction of motion is positive and the starting direction of motion before to impact is negative.
m = 0.15 kg, or the mass of the ball being struck
v0 is the ball's pre-impact initial velocity and is equal to 36 m/s.
45 m/s is the ball's final speed after impact, or v.
Time of Impact: 0.0020 seconds
Reggie's force on the ball was F.
Incorporating impulse-change into the momentum equation
F t = m (v - v₀)
F (0.0020) = (0.15) (45 - (- 36))
F = 6075 N
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if something being dropped has a mass of 0.4 kg, and the height from the floor to the top is 15 m, what would have been the change of PE
Answers
If something being dropped has a mass of 0.4 kg, and the height from the floor to the top is 15 m then 20J would be the change in PE.
What is PE's formula?The force acting on the two objects affects the potential energy formula. The formula for gravitational force is P.E. = mgh, where g is the acceleration caused by gravity (9.8 m/s2 at the earth's surface) and h is the height in meters.
How much potential energy is there?Potential energy is a form of stored energy that is dependent on the relationship between different system components. When a spring is compressed or stretched, its potential energy increases. If a steel ball is raised above the ground as opposed to falling to the ground, it has more potential energy.
Given :
Mass of the object M=0.4 kg
Height up to which it is raised h=5 m
Potential energy P.E=Mgh
g = 10 m/s^2
P.E= 0.4×10×5=20J
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20J would be the change in PE for a drop with a mass of 0.4 kg and a height of 15 m from the ground to the top.
What is the PE equation?The potential energy formula is impacted by the force operating on the two objects.
P.E. = mgh, where g is the acceleration brought on by gravity, h is the height in metres, is the formula for gravitational force.
What is the amount of potential energy?Potential energy is a type of stored energy that depends on how various system elements interact with one another. A spring's potential energy rises when it is crushed or stretched. A steel ball has higher potential energy if it is lifted above the ground as opposed to falling to the ground.
Given:
M=0.4 kg, the object's mass
It is raised to a height of h=5 m.
Powerful potential P.E=Mgh
g = 10 m/s^2
P.E= 0.4×10×5=20J.
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The gravitational acceleration on the surface
of planet Zeb is the same as on the surface of
the earth, but planet Zeb has twice the radius
of the earth. What must be the ratio of the mass of
planet Zeb to the mass of earth?
1) 1/8
2)2
3)8
4) 1/4
5) 1 (the same since g is the same)
6) 1/10
7)4
8)10
9)6
Answers
Answer:
The ratio of the mass of planet Zeb to the mass of Earth must be 8.
Explanation:
The gravitational acceleration on the surface of a planet is determined by the mass of the planet and its radius. The equation is g = GM/r^2, where G is the gravitational constant, M is the mass of the planet, and r is the radius of the planet.
If we assume that the gravitational acceleration on the surface of both planets is the same, we can set the equation for Earth equal to the equation for planet Zeb and solve for the ratio of the mass of planet Zeb to the mass of Earth.
g(earth) = GM(earth)/r(earth)^2 = GM(zeb)/r(zeb)^2
We know that r(zeb) = 2 * r(earth)
so,
GM(earth)/r(earth)^2 = GM(zeb)/(2*r(earth))^2
GM(zeb)/GM(earth) = (2*r(earth))^2 /r(earth)^2
GM(zeb)/GM(earth) = 4*4
GM(zeb)/GM(earth) = 16
So the ratio of the mass of planet Zeb to the mass of Earth is 16/1 = 8
A Car of mass 100kg accelerates from 5mls to 10m/s over 2 seconds find the net force acting on it ?
please helppppppppp me
Answers
Answer:
250 Newtons
Explanation:
To find the net force acting on the car, we can use the equation:
F = ma
Where F is the net force, m is the mass of the car and a is the acceleration.
We know that the mass of the car is 100 kg and the acceleration is (10m/s - 5m/s) / 2 seconds = 2.5 m/s²
So, the net force acting on the car is:
F = (100 kg) x (2.5 m/s²) = 250 N
Therefore, the net force acting on the car is 250 N
The force of gravity between these pairs of objects:a 1-kg mass and 2-kg mass that are 1 m apart;
Answers
The force of gravity between the two objects is 1.33 x 10⁻¹⁰ N.
What is the force of gravity between the two objects?
The force of gravity between the two objects is calculated by applying Newton's law of universal gravitation.
Fg = Gm₁m₂ / r²
where;
G is universal gravitation constantm₁ is mass of first objectm₂ is mass of second objectr is the distance between themFg = ( 6.67 x 10⁻¹¹ x 1 kg x 2 kg ) / ( 1 m )²
Fg = 1.33 x 10⁻¹⁰ N
Thus, the force of gravity is proportional to the product of the masses and inversely proportional to the square of the distance between them.
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Can someone write 2-3 sentences about waves. (Transversal waves, Wavelength, Longitudinal waves.)
Answers
The answers include the following below:
Transversal waves - This is the type of wave whose oscillations are perpendicular to the direction of the wave's advance.Wavelength - This is the distance between corresponding points of two consecutive waves.Longitudinal waves - This is the type of wave in which the vibration of the particles takes place in the same direction as that of the wave.What is a Wave?This is referred to as the propagation of disturbances from place to place in a regular and organized way and there are different types of waves.
An example is the longitudinal wave which has the vibration of the particles takes place in the same direction as that of the wave.
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Dipole-dipole forces are considered the most important forces in polar substances because the London dispersion forces
Answers
They are attractive forces between two permanent dipoles, or two induced dipoles.
What is dipoles?A dipole is a type of electrical charge consisting of two equal and oppositely charged poles, or points of charge. The two poles are usually represented by a positive and negative sign. Dipoles are commonly found in molecules, atoms, and other types of particles, and are responsible for many of the physical and chemical interactions we observe in nature. Dipoles can also be created artificially with electrical equipment, such as in the case of an electric dipole antenna, which is used to transmit or receive radio signals. In a dipole, the two charges attract each other, which creates a field of force between them. The strength of this field depends on the distance between the two charges. Dipoles also exist in a magnetic form, in which the two poles have opposite magnetic poles and create a magnetic field.
This type of intermolecular force is a type of Van der Waals force and is much stronger than the London dispersion forces. They are responsible for most of the physical properties of polar substances, such as boiling points, melting points, and solubility.
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Instructions for finding a buried treasure include the following: Go 779.7 paces at 288◦ , turn to 132◦ and walk 266 paces, then travel 115 paces at 75◦ . Find the magnitude of the resultant displacement from the starting point. Answer in units of paces. Answer in units of paces
Answers
Answer :
after this all u can write this
Which is defined as the statement that answers the scientific problem based on the results of the experiment?
Answers
Conclusion statement defines the answer of a scientific problem based on the result of the experiment.
A scientific problem is solved by the scientific methods. A scientific method is the step-by-step approach to a conclusion of the problem. It may include the following steps.
Observation: It is the first step of the method. It is based on that how do you see the problem.
Hypothesis: It is the result you think that you will get.
Prediction: It is based on your scientific knowledge. If our hypothesis is correct than our prediction will also be true.
Experiment: It is the system or mechanism designed by you to test your hypothesis.
Conclusion: It is the final result based on the experiment of the method. This statement tells you whether your hypothesis is true or not.
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A 50kg student is climbing a rock face with a constant speed. Neglect any friction and drag impeding her motion. How much force is the student generating up the hill?
Answers
Answer:
Below
Explanation:
50 * 9.81 = 490.5 N since there is no acceleration, climber must only overcome the accel of gravity
Heat is absorbed during which of the following activities
Answers
Endothermic chemical reactions occur when the reactants take in heat energy from their environment to create products. A cooling effect is produced by these reactions because they cause their surroundings to become cooler.
The definition of endothermic reactionsThe term "endothermic" refers to chemical reactions that either completely absorb or use energy. When bonds inside the reactants are broken, more energy is taken in than is released when fresh bonds form in the product lines. This is known as an endothermic reaction.
five endothermic reactions what are they ?Examples of endothermic processes include photosynthesis, the evaporation of liquids, the melting of ice and dry ice, the cracking of alkanes, thermal decomposition, the oxidation of ammonium chloride in water, and many others.
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a mechanical wave transmits energy through a vacuum. true or false?
Answers
The given statement “A mechanical wave transmits energy through a vacuum” is false, because mechanical waves cannot move through areas of space where there are no particles because their energy transmission depends on particle contact.
Waves that are classified as mechanical waves require the presence of a medium in order for their energy to be transmitted from one place to another. This makes mechanical waves incapable of transmitting their energy through a vacuum. There are three distinct categories of mechanical waves: transverse waves, longitudinal waves, and surface waves. Mechanical waves have many interesting characteristics, but one of the most noteworthy is their measurement, which is given by displacement divided by wavelength.
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A 0. 500 kilogram cart traveling to the right on a horizontal frictionless surface.
Answers
After the collision, the two-cart system's total momentum was 0.22 kg m/s in magnitude. The correct answer is A.
To find the magnitude of the total momentum of the two-cart system after the collision, we can use the principle of conservation of momentum. This principle says that the total momentum of a closed system, like the two carts in this case, stays the same unless an outside force changes it.
First, calculate the initial momentum of the first cart:
momentum = mass x velocity p1 momentum = 0.500 kg x 2.20 m/s momentum = 1.10 kg m/sThen, calculate the initial momentum of the second cart:
p2 = 0.800 kg x -1.10 m/s p2 = -0.88 kg m/s (negative sign indicates that the cart is moving in the opposite direction).After that, we need to calculate the total initial momentum:
p_initial = p1 + p2 p_initial = 1.10 kg m/s + (-0.88 kg m/s) p_initial = 0.22 kg m/sUse the principle of conservation of momentum to calculate the final momentum:
p_initial = p_final 0.22 kg m/s = p_finalSo the magnitude of the total momentum of the two-cart system after the collision is 0.22 kg m/s.
This question isn't complete. Here's how it should be written and how answer choices should be given:
A 0.500-kilogram cart traveling to the right on a horizontal, frictionless surface at 2.20 meters per second collides head on with a 0.800-kilogram cart moving to the left at 1.10 meters per second. What is the magnitude of the total momentum of the two-cart system after the collision?
A. 0.22 kg m/sB. 0.39 kg m/sC. 1.98 kg m/sD. 4.29 kg m/sThe correct answer is A.
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Across the northern part of our continent, many bodies of water are covered by a thick layer of ice for many months of the year. Which properties of water make it possible for life to continue to exist in those lakes? Water has a high specific heat in comparison to other substances. Water has a high solvent capacity for a variety of substances. Old water is denser than ice, so the ice floats to the top. a I only b I and II only c I and III only d I, II, and III
Answers
Answer:
Bbbbbbbbbbbbbb. bbbbbbbbbbbbbbb
The properties of water that makes it possible for life to continue to exist in lakes covered by a thick layer of ice for many months of the year are:
Water has a high specific heat in comparison to other substancesCold water is denser than ice, so the ice floats to the top.The correct option is C.
How does the water in frozen lakes support life?The water in frozen lakes supports life because of the following properties f water;
Water has a high specific heat in comparison to other substancesCold water is denser than ice, so the ice floats to the top.As soon as the water turns to ice, the ice loses a lot of its water-like density and continues to float on the lake's surface. Water loses density when it grows colder below 4° Celsius, forcing water that is about to freeze to float to the top.
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According to the NEC, a Class 1 power limited circuit
must be supplied from a source having a rated output of
not more than _____ volts and 1000 volt-amperes.
Answers
According to the NEC, a class 1 power limited circuit must be supplied from a source having a rated output of not more than 30 volts and 1000 volt-amperes.
NEC stands for National Electrical Code. It is a part of National Fire Protection Association (NFPA) of united states. NEC provides the standard and code for the safe installation of electrical wiring and equipment.
Class 1 power limited has a device that controls or regulates the current from the power source. This device prevents the overflow of the current in the circuit and thereby also prevents the short circuiting, overload, ground fall, etc.
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A car accelerates uniformly from rest and
reaches a speed of 13.9 m/s in 3.7 s. The
diameter of a tire is 85.1 cm.
Find the number of revolutions the tire
makes during this motion, assuming no slipping.
Answer in units of rev.
Answers
The number of revolutions of the tire during the motion is 10 revolutions.
What is the number of revolutions of the tire?The number of revolutions of the tire during the motion is calculated from the distance travelled by the tire.
The total distance travelled by the tire during the motion is calculated as follows;
s = t ( u + v ) / 2
where;
u is the initial speed of the carv is the final speed of the cart is the time of motions = 3.7 x ( 13.9 + 0 ) / 2
s = 25.72 m
The number of revolutions of the tire is calculated as follows;
N ( 2πr ) = 25.71
where;
r is the radius of the tireN = ( 25.71 ) / ( 2π x 0.4255 )
N = 9.6 ≈ 10 rev
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What is the relationship between current and voltage across a circuit?
O inversely proportional
O no relationship
O joint variation
O directly proportional
Answers
The relationship between current and voltage across a circuit is directly proportional. It is given as per the Ohm's law. Thus, the correct option is D.
What is Ohm's law?Ohm's law states that the current in an electric circuit through a conductor between the two points is directly proportional to the voltage across the two points of the conductor. Introducing the constant of proportionality, the resistance (R), where one arrives at the usual mathematical equation which describes this relationship:
I = V/ R
V = IR
where, I is the electric current flowing through the circuit,
V is the voltage of the electric circuit,
R is the resistance across the electric circuit
More specifically, the Ohm's law states that the R in this relation is a constant, which is independent of the electric current in the circuit.
Therefore, the correct option is D.
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What happens when a falling object reaches terminal velocity?
it slows down.
it stops accelerating
It speeds up
it hits the ground and stops.
2. How does a falling object’s surface area affect calculations of terminal velocity?
The greater the objects surface area, the more air resistance it encounters
The greater the objects surface area, the greater the air density
Surface area does not affect an object’s terminal velocity
The greater the object’s surface area, the greater it’s terminal velocity
Answers
When the object reaches the terminal velocity the object stops accelerating. Option B
The greater the objects surface area, the more air resistance it encounters. Option A
What is the terminal velocity?Terminal velocity is the maximum velocity an object reaches when falling through a fluid, such as air, due to the balance of gravitational force and fluid drag.
Surface area affects terminal velocity because a larger surface area results in greater fluid drag force, which slows the object's descent. A smaller surface area results in less fluid drag and a higher terminal velocity.
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1. write if true or false
Centrifuge works on centripetal force
b. separating funnel is used to separate blood cells from blood samples
c. Rotors are used in physical separation of a solid and a liquid.
d. Centrifuge is used to separate suspended particles from suspension
e. Milk and water are separated by using separating funnel
f. The role of condenser is connected to hot water supply
Answers
Answer:
a: True centrifuge works on centripetal force.
b: False separating funnel can't be used to separate blood cells from samples.
e: False separating funnel cannot separate milk and water.
f: Condenser receives high pressure gas from the compressor and convert this gas to a liquid.
What type of energy is a bicycle going uphill?
Answers
When going up a hill, the type of energy which a bicycle has is potential energy.
What is potential energy?A potential energy is a stored energy which depends upon the relative position of various parts of a system. When it is compressed or stretched, a spring has more potential energy. Any object which is lifted from its resting position has stored energy because it has a potential to do work when released.
When going up a hill, a bicycle has potential energy. As we climb to get up the hill, we gain potential energy.
Potential energy is the stored energy in any object by virtue of its position or arrangement of parts. However, it is not affected by the environment outside of the object, such as air or height. On the other side, kinetic energy is the energy of an object's particles in motion.
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After 5 days, what is the expected frequency of the wrinkly-spreader morphotype in the static (not shaken) microcosm
Answers
After 5 days, the expected frequency of the wrinkly-spreader morphotype in the static (not shaken) microcosm will depend on the initial frequency of the morphotype in the microcosm.
What is initial frequency?The frequency of a repeated event is its number of instances per unit of time. Another name for it is temporal frequency, emphasizing how it differs from spatial frequency & angular frequency. The period is indeed the reciprocal of a frequency since it is the length of time for one cycle inside a repeating occurrence. For example: if a newborn baby's heart beats at a frequency of 120 times a minute, its period —the time interval between beats— is half a second. Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibra tory phenomenon.
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p
4. Which of the following statements is not accurate regarding identifying factors on the health pyramid?
All three sides of the health triangle affect each other.
Personal actions are categorized on the health pyramid by the intended purpose of the initial actions.
Physical health is the base of the triangle and is the most important part of the health triangle.
Working out a gym would be categorized in the physical health category.
Answers
Pyramid collision, recommendations are made specifically for each person depending on their age, gender, and amount of physical activity. The consumption of cereals, milk, veggies, fruit, and oils are the main.
A health impact pyramid: what is it?
The Health Benefit Pyramid is a diagram that shows the many levels of impact that can come from interventions in public health. Attempts to deal with the social determinants that potentially affect your health are at the bottom of the pyramid, suggesting interventions with the highest potential impact. Housing, financial stability, public safety, jobs, education, and the environment are a few examples of these. The broader determinants of health are these.
What are the four primary categories of factors that affect health?
Numerous variables affect health, including These circumstances are referred to as social determinants, which are the socioeconomic factors that influence life expectancy and quality of life and support health. Examples of these factors include accommodation, education, access to food, and transportation. Too frequently, people lack control over their ability to access these resources that influence their health.
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Man pushes a shopping cart to the right with 93 N of force and travel 23 m to tge right how much work is done on shopping cart ?
Answers
Jordyn places a balloon near some paper scraps, but nothing happens. After Jordyn
rubs the balloon against her shirt, the paper scraps start sticking to the balloon.
Jordyn's teacher notes that there is now an electric force between the balloon and
the paper.
What could have happened when the balloon was rubbed on Jordyn's shirt to cause
this electric force?
The balloon has gained a net electric charge.
The balloon has lost its net electric charge.
The net electric charge of the balloon did not change.
Answers
A balloon absorbs electrons from a wool fabric when it is rubbed against it, leaving the balloon with a negative charge and the wool with a positive charge.
Is there static electricity in a balloon?Electrons from the atoms and molecules in your hair migrate to the balloon when you brush it against your head. The balloon acquires a negative charge thanks to the negative charge of electrons, but your hair retains a positive charge.
Electrons migrate from the hair or wool to the balloon when the balloon is rubbed against it. The balloon picks up a net negative charge because electrons have a negative charge. The can rolls because the positive charges in the can are drawn to the negative charges in the balloon.
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