Which of the following would have the most potential energy?

A.

a car moving along a flat road at 60 mph

В.

a rollercoaster that is at the bottom of a hill

C.

a ball rolling on a flat surface

D.

a rock sitting on the edge of a cliff

Hree charges are fixed in place as shown. the squares in the grid have sides of length s = 0.24 m. the magnitude of q is 3 mu or micro cc, while the magnitude of q is 4.5 mu or micro cc.

A worker pulls horizontally on a crate across a rough horizontal surface, causing it to move forward with constant velocity. Force A is the force exerted by the worker and force B is the force of friction due to the surface.

How deep would you have to go in a mine shaft to reach a pressure of 2.00 atm? (Assume the density of air remains a constant 1.29 kg/m^3.) (Unit = m)

Which of the following methods of generating electricity is the only one that does not rely on faraday's law of electromagnetic induction?

Find the element that makes glowing signs, what special group is it in

A 26-g steel-jacketed bullet is fired with a velocity of 630 m/s toward a steel plate and ricochets along path CD with a velocity 500 m/s.

A small boat is carrying four people across a river. Without any paddling, the boat moves downstream at a steady speed of 5 m/s. If the average weight of the four people is 60 kg, then what is the speed of the boat after one person gets?

Does temperature affect the dissolving phase?

In a clear, coherent, paragraph-length answer, explain why the speed of the apple half way between the release and the maximum height is not half the initial speed.

In pea plants Round (R) is a dominant trait and wrinkled nose (r) is a recessive trait. Which combination would result in wrinkled seeds? 1. RR 2. Rr 3. rr 4. ww