A car jack with a mechanical advantage of 6 needs to produce an output force of 600 N to raise a car. What input force is required?

The work done by static friction can be : a. Zero B. Negative C. Positive D. Any of the above

Reagan has a an empty glass cup. It has a mass of 0.3 kg. She drops the cup on the ground and it shatters into several pieces. If she collected all of the pieces of the cup, how much mass would all of the pieces have combined?

In your own words, explain how energy is involved in physical changes and in chemical change

Imagine a girl climbing a rope ladder to ride a zip line. It takes effort for her to get to the top of the ladder, but then she zips to the ground with ease. She travels down easily because she has stored energy.

What happens if balanced forces are applied to a moving object? A. The object stops moving. B. The object moves faster in the same direction. C. The object moves slower in the same direction. D.

For a vacation, you and your family fly east to west from Boston, Massachusetts, to Seattle, Washington. You notice that your flight back home to Boston is shorter than your flight to Seattle. Which phenomenon causes your flight home to be shorter?

You spy on an anchor on the bottom of a lake. What is the direction and amount of force the water exerts on it: a) zero b) up, equal to the weight of the anchor. c) up, less than the weight of the anchor d) down, equal to the weight of the anchor.

How are electromagnetic waves different from matter waves?

A dc generator is the same as a (n) a. electric motor. b. ac generator. c. armature. d. electric current.

Which of the following best describes scientific knowledge A.) Durable B.) Absolute and never changing C.) Frequently varies