Since 1 kilowatt equals 1000 watts, and 1 hour equals 3600 seconds, it follows that the kilowatt-hour is
A) an energy of 3.6 million joules.
B) a power of 3.6 million watts.
C) an energy of 3.6 million watts.
D) a power of 3.6 million joules.
E) None of the above.
Question 2
A 6.0-kg box slides down an inclined plane that makes an angle of 39 with the horizontal. If the coefficient of kinetic friction is 0.40, at what rate does the box accelerate down the slope?
A) 3.1 m/s2
B) 3.4 m/s2
C) 3.7 m/s2
D) 4.1 m/s2
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