A small, 3 kg weight is moved from 5 m from the ground to 8 m. What is the change in potential energy?

Winds generally flow away from the equator and toward the poles. What transfer does this flow of wind cause?

A girl and a boy are riding on a merry-go-round that is turning at a constant rate. the girl is near the outer edge, and the boy is closer to the center. who has greater angular displacement?

You are riding shotgun in a 2000 kg race car. The driver makes a sharp turn going 60 m/s which throws you into the door with a force of 6000 N. You have a mass of 60 kg. How tight was the turn, or in physics terms, what was the radius of the turn?

The slope of a speed-time linear graph is?

If the change in velocity increases, what happens to the acceleration during that same time period?

If a car is traveling on the highway at a constant velocity, the force that pushes the car forward must be A. greater than the force of friction exerted upon the car. B. less than the force of friction exerted upon the car. C.

Tom stops using a new skin cream for five days to determine if the cream is the cause of a recent rash. What stage of the scientific method is Tom using?

Use your observations to determine qualitatively how the strength of the electric interaction between charged objects depends on the distance between them. Explain your reasoning (this is trickier than it might seem at first).

Far from any other masses, two masses, m1 and m2, are interacting gravitationally. The value for the mass of m1 suddenly doubles. What happens to the value of the gravitational force that mass m2 exerts on mass m1?

Which of the outer planets are most like Earth? How?