A student combs his hair with a plastic comb, and the hair becomes positively charged. What is the net charge of the comb and the hair and the direction of the charge
transfer?

A.)Protons move from the comb to the hair, and the total charge of the hair and the comb is positive.

B.)Electrons move from the hair to the comb, and the total charge of the hair and the comb is negative.

C.)Protons move from the comb to the hair and the total charge of the hair and the comb is zero.

D.)Electrons move from the hair to the comb, and the total charge of the hair and the comb is zero.

I think its B

Explanation:

because "This means that when you rubbed the plastic comb along your hair, your hair resisted the movement of the comb and slowed it down. The friction between two surfaces can cause electrons to be transferred from one surface to the other."

graphing motion: mastery test

209be

what is the instantaneous acceleration of

the particle at point b?

0 meters/second?

10 meters/second?

12 meters/second?

velocity imetersisecond

15 meters/second?

20

time (seconds)

answer: 0 meters/second^2

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas