5. a 1-kg car and a 2-kg car are both released from the top of the same hill and roll down a frictionless track. at the bottom of the hill, which car will have the greater
speed? which car will have the greater kinetic energy?
o a the 1-kg car will have greater speed, and the 2-kg car will have greater kinetic energy
ob. the 2 kg car car will have greater speed, and the 7-kg car will have greater kinetic energy
oc. the cars will have equal speeds and equal kinetic energies.
od. the cars will have equal speeds and the 2 kg car will have greater kinetic energy

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p

Frequency of electromagnetic waves that a radio station is assigned. what do you call this type of wave?