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Author Question: A small bead slides without friction along the wire shown. It begins at A and slides by gravity past ... (Read 69 times)

daltonest1984

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on: Jul 29, 2018
A small bead slides without friction along the wire shown. It begins at A and slides by gravity past B, which doesn't touch the rest of the wire. The potential energy of the bead is greatest at point
 
  1) A,
  2) B,
  3) C,
  4) D,
  5) E,
 
  and the bead has its maximum momentum at point
  6) A.
  7) B.
  8) C.
  9) D.
  10) E.

Question 2

All things being practically equal, if the energy content in gasoline were doubled, then the distance a car should travel per liter of gasoline should
 
  1) be no different.
  2) double.
  3) quadruple.
 
  If the low-energy and high-energy fuels are burned in the same time, then compared to the POWER produced by combustion of the low-energy gasoline, the power produced by the combustion of the higher-energy gasoline should
  4) be no different.
  5) double.
  6) quadruple.


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diana chang

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

Answer: 1, 9

Answer to Question 2

Answer: 2, 5


daltonest1984

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Reply 2 on: Jul 29, 2018
Excellent

essyface1

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Reply 3 on: Yesterday
Gracias!

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