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Author Question: Is the TMA always greater than the AMA for a machine? Explain. ... (Read 25 times)

WWatsford

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on: Jul 28, 2018
Is the TMA always greater than the AMA for a machine? Explain.

Question 2

A large, metallic, spherical shell has no net charge. It is supported on an insulating stand and has a small hole at the top. A small tack with charge Q is lowered on a silk thread through the hole into the interior of the shell. What is the charge on the outer surface of the shell?
  1.Q
  2.Q/2
  3.0
  4.-Q/2
  5.-Q


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Natalie4ever

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

TMA is always greater than AMA because friction is always present and must be
overcome by the input force, although this effect may be so small that it is difficult to
detect, especially at slow speeds.

Answer to Question 2

1


WWatsford

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Reply #2 on: Jul 28, 2018
TY


Natalie4ever

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


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