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Author Question: Ten coulombs of charge start from the negative terminal of a battery, flow through the battery and ... (Read 104 times)

kwoodring

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on: Jul 28, 2018
Ten coulombs of charge start from the negative terminal of a battery, flow through the battery and then leave the positive terminal through a wire, flow through a resistor, and then return to the starting point on this closed circuit. In this complete process, the ten coulombs:
 a. receive heat energy from the resistor.
  b. do positive work on the battery.
  c. have a net loss of potential energy.
  d. have no net change in potential energy.

Question 2

A 40-kg boy is standing on the edge of a stationary 30-kg circular platform that is free to rotate. The boy tries to walk around the platform in a counterclockwise direction. As he does:
 a. the platform doesn't rotate.
  b. the platform rotates in a clockwise direction just fast enough so that the boy remains stationary relative to the ground. c. the platform rotates in a clockwise direction while the boy goes around in a counterclockwise direction relative to the ground. d. both go around with equal angular velocities but in opposite directions.


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scikid

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Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

C


kwoodring

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Reply #2 on: Jul 28, 2018
TY


scikid

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Reply #3 on: Jul 28, 2018
You're welcome


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