A boulder with a weight of 780 N is resting at the edge of a cliff that rises 123 m above the ground. What is the gravitational potential energy of the boulder?

How does gravity create inertia

If the velocity of a long jumper during take-offat an angle of 30 degrees is 42 f/s, how fast is he moving forward (Vx) and how fast is he moving upward (Vy) ? The answers should be in international units (m/s). 1 foot = 0.3048 m

An astronaut is in space with a baseball and a bowling ball. The astronaut pushes both objects in the same direction. If both balls are traveling at the same speed, does the baseball have the same momentum as the bowling ball?

In this example, the bottle, made of plastic, has solid matter that allows for conduction of heat. What happens if in between the juice and the ice water there are no molecules? (Hint, think Yeti)

How does the type of matter affect the change in temperature of matter?

A boat has a mass of 4040 kg. Its engines generate a drive force of 4660 N due west, while the wind exerts a force of 880 N due east and the water exerts a resistive force of 1400 N due east. Take west to be the positive direction.

Define the word projectile

Which is not a property of an electromagnetic wave? O It is made of magnetic fields It travels at the speed of light O It is made of electrical fields It carries energy only through matter

Explain why your weight would be less in the moon than on earth even though your mass would not change. Use the law of universal gravitation in your explanation.

ions are atoms or groups of atoms that have a positive or negative charge. which of the following statements is true of ions?