What is the definition of power?

A. The ability to do work

B. The rate of doing work

C. The amount of work done

D. Work output divided by work input

A spring has a constant of 20 n/m. how far will it extend when the following forces are applied. (assume the spring does not pass its elastic limit) a) 10 N b) 50 N c) 0.2 KN

A body having uniform velocity has zero acceleration. why?

How long will it take a car to go from a complete stop to 44 km/h if they are accelerating at 5 kilometers per hour squared

A perfectly still 0.01 kg marble is hit with a force of 50 N by a pencil. According to Newton's third law, which describes the force the marble exerts on the pencil? A. The marble exerts a force of 0.05 N on the pencil. B.

If a box weighs 20 newtons, will a force of 20 newtons push it?

The catcher catches a. 5 kg baseball traveling at 40 m/s and the glove is pushed back 10 cm. What average force did the catcher put on the ball?

Describe the climate and name the climate zone at alaska; portland, oregon; and key west, florida.

If a river is 20 feet wide in nature and needs to be scaled to one-tenth its real size, how wide should it be in a model?

A sample has a density of 30 g/ml. there is 60 ml of this substance. how much does it weigh?

Forgetting takes place only in short-term memory.