A 12-V automobile battery is connected to an electric starter motor. The current through the
motor is 210 A.
a. How many joules of energy does the bat-
tery deliver to the motor each second?
b. What power, in watts, does the motor use?

Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9

Efficiency is the ratio of to for a system a)power in to power in b)power in to power out c) power out to power out d) power out to power in