If you break a bar magnet in half, each half
a) contains one magnetic pole
b) becomes a bar magnet with two poles
c) becomes unmagnetized
d) is only temporarily magnetized

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than

Name two kinds of practical electric pumps.

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block