If you measure the force experienced by an electrically-charged bead placed inside an operating microwave oven, you will find that the force
A)	reverses directions several billion times per second.
B)	is proportional to the mass of the bead.
C)	is proportional to the velocity of the bead.
D)	is proportional to the amount of air inside the microwave oven.
Answer:A
If you measure the force experienced by an electrically-charged bead placed inside an operating microwave oven, you will find that the force
A)	reverses directions several billion times per second. B)	is proportional to the mass of the bead. C)	is proportional to the velocity of the bead. D)	is proportional to the amount of air inside the microwave oven.