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Author Question: Suppose that we wish to find the net force on an automobile, in order to apply Newton's law of ... (Read 115 times)

cookcarl

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on: Jul 29, 2018
Suppose that we wish to find the net force on an automobile, in order to apply Newton's law of motion to the motion of the automobile.
 
  As part of the net force, do we need to include internal frictional forces due to internal gears, bearings, etc.?
  A) Yes, because of Newton's law of force pairs.
  B) No, because only external forces need to be included.
  C) Yes, because every internal and external force must be included.
  D) No, because only the drive force needs to be included.
  E) Yes, because these forces dissipate some of the car's energy.

Question 2

The accident at Three Mile Island began when
 
  A) the moderator malfunctioned so that the reaction got out of control.
  B) a water pump failed.
  C) the control rods didn't insert properly.
  D) the pressurizer ruptured i.e., broke open and there was no backup pressurizer to replace it.
  E) the heat exchanger failed to operate properly.


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aidanmbrowne

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Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

B


cookcarl

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Reply 2 on: Jul 29, 2018
Wow, this really help

AngeliqueG

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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