Which of the following is transferred to an object when work is done? A. motion B. energy C. force D. friction

The wind blows a 0.5 g leaf with a force of 0.008 N. If the leaf travels 25 m, how much work did the wind do on the leaf? a. 0.13 J b. 0.20 J c. 0.63 J d. 1.6 J

True or false science requires theories that can be tested by research.

If root-mean-square voltage of a supply is 240 V, calculate the maximum voltage of the supply (a) 169.7 V (b) 240 V (c) 339.4 V (d) OV

A person began running due east and covered 15 km in 2.0 hr. What is the average velocity of the person? Show all your work!

If the star alpha centauri, 4.37 light-years distant from the earth, were to explode this instant, when would we be aware of this event?

What is the main purpose of a simple machine?

given that a car's distance from a stop sign t seconds since it started moving is represented by d=t2-2t determine the car's average speed over each interval of elapsed time

A ball hits a wall. What is true about the magnitude of the force experienced by the ball compared with the force experienced by the wall? OA. The ball experiences more force than the wall. OB. The ball experiences less force than the wall.

A swimmer jumps from a waterfall thats is 8.5 m high from the lake below. How fast must he run horizontally to dive 2.5m away from the base of the waterfall?

What happens (as far as energy goes) when a molecule of gas strikes the wall of a container?