You push a loaded shopping cart 5 meters along the ground with a force of

200 N. What work have you done on it?

O A. 9,000 j

O B. 2,500 j

O C. 2003

O

D. 1,000 J

Define speed in a sentence to show its scientific meaning.

Define kinetic energy

You run to your girlfriend's house and announce that you were running at a rate of 15 miles per hour. She knows this is not true because she knows A) how far it is and in what direction.

A 64-kg base runner begins his slide into second base when he is moving at a speed of 3.4 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base.

Which choice can be defined as the space around any charged particle that is directed away from a positive charge and towards a negative charge? gravitational field magnetic field proton field electric field

The two main parts of a wave are the a. swell and whitecap. c. crest and trough. b. wavelength and wave height. d. rise and dip.

A block of mass m=16.8 kg is sliding on a surface with initial velocity v=23.2 m/s. The block has a coefficient of kinetic friction μk = 0.426 with respect to the surface and is being pushed by a force of magnitude F=86.

Two children are pulling and pushing a 30.0 kg sled. The child pulling the sled is exerting a force of 12.0 N at a 45o angle. The child pushing the sled is exerting a horizontal a force of 8.00 N. There is a force of friction of 5.00 N.

Describe what a planetesimal is. Is it related to a protoplanet?

Describe the medium that electromagnetic waves use to travel