What type of potential energy does a roller coaster have? Explain

A force of 5000 n is applied outwardly to each end of a 5.0-m long rod with a radius of 34.0 mm and a young's modulus of 125 x 108 n/m2. the elongation of the rod is:

To survive, humans need resources found on the Earth. Why is this true? A. Humans could not eat, drink, and breathe without the resources of plants, water, and air. B. Humans could not have cars without the resources of fuels and metals. C.

If the width of the plasma membrane is approximately 5 nm, and the electric field is constant throughout that width, what is the electric force acting on a sodium cation as it passes from the extracellular space to the intracellular space through a

What is the correct definition of electricity?

As you are leaving a building, the door opens outward. if the hinges on the door are on your right, what is the direction of the angular velocity of the door as you open it?

State the molecular theory of magnetism

A 0.50 kg croquet ball is initially at rest on the grass. When theball is struck by a mallet, the average force exerted on it is240 N. If the ball's speed after beingstruck is 3.0 m/s, how long was the malletin contact with the ball?

What is the speed of a 0.145kg baseball if its kinetic energy is 109J?

A student travels from st. louis to indianapolis, a distance of 210 mi, in 7.0 h. the return trip over the same route takes 6.0 h. what is the average speed for

If the velocity of a moving object doubles, then what else doubles?