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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 70 times)

beccaep

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on: Jul 27, 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 watts. If the cost of electricity is 0.120/kW-h, how much does it cost to run the fan?
 
  What will be an ideal response?

Question 2

Which of the following represents the Mechanical Equivalent of Heat?
 
  A) 1 ft-lb = 1.36 Joules
  B) 1 cal = 3.97  10-3 BTU
  C) 1. eV = 1.6  10-19 J
  D) 1. J = 1 kgm2 / s2
  E) 1.00 J = 0.239 cal


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vickyvicksss

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Reply #1 on: Jul 27, 2018
Answer to Question 1

4.03

Answer to Question 2

E


beccaep

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Reply 2 on: Jul 27, 2018
:D TYSM

smrtceo

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Reply 3 on: Yesterday
Excellent

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