Author Question: A family goes on vacation for one week, but forgets to turn off an electric fan that consumes ... (Read 72 times)

beccaep · **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