A 3-kg mass is in free fall. What is the velocity of the mass after 7 seconds?

Which of the following is true about functional text? A. Functional text does not contain diagrams and illustrations. B. Many people read functional text, but few people write it. C.

The law of conservation of energy is a statement that : energy must be conserved and you are breaking a law if you waste energy. the total amount of energy is constant for a closed system. the supply of energy is limited so we must conserve.

Which of these can NOT be negative? a. acceleration and momentum. b. speed and velocity. c. distance and speed. d. displacement and distance.

An 88 N forces pushes an object 15 m. how much work did the force do on the object

Resistance is inversely proportional to cross sectional area; is it same as cross sectional area inversely proportional to resistance?

Where does the energy that is used to ride a bicycle up a hill come from and how is it classified?

Explain how the energy of a rubber ball is transformed as it rolls down a ramp.

Which type of friction acts on an object that is not moving? static friction fluid friction sliding friction rolling friction

A substance maintaining a uniform appearance throughout

How much work will it take to lift a 2-kg pair of hiking boots 2 meters off the ground and onto a shelf in your closet? O A. 2.45 J OB. 4J C. 39.2 J D. 20 J