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Author Question: A family goes on vacation for one week but forgets to turn off an electric fan that consumes ... (Read 14 times)

WhattoUnderstand

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on: Jul 29, 2018
A family goes on vacation for one week but forgets to turn off an electric fan that consumes electricity at the rate of 200 W. If the cost of electricity is 12.0/kWh how much does it cost (to the nearest penny) to run the fan for the week?
 
  What will be an ideal response?

Question 2

If the frequency of the motion of a simple harmonic oscillator is doubled, by what factor does the maximum speed of the oscillator change?
 
  A) 2
  B) 4
  C) It does not change.
  D) 1/2
  E) 1/4


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Jody Vaughn

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

4.03

Answer to Question 2

A


WhattoUnderstand

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

kusterl

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Reply 3 on: Yesterday
Excellent

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