Aboy slides a book across the floor, using a force of 5 n over a distance of 2
m. what is the kinetic energy of the book after he slides it? assume there is
no friction.
o
a. 5j
o
o b. 2.5 j
o c. 103
o d. 20 j

What if? physicists often measure the momentum of subatomic particles moving near the speed of light in units of mev/c, where c is the speed of light, and 1 mev = 1.6 ✕ 10−13 kg · m2/s2. based on this, what are the units of momentum for a high-speed subatomic particle in terms of fundamental si units?

What is the angular momentum of the bar about the axle?

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer