Answer:
C) 2,300,000 J
Explanation:
A 120 volt refrigerator uses 650 watts. Calculate how much work is done by the refrigerator in one hour.
A) 9.7 J
B) 39,000 J
C) 2,300,000 J
D) 4,100,000 J
power is the rate at which work is done by a machine.
work done is the product of force and distance,
it is also when energy is expended by a machine
energy can be dissipated by the refrigerator in form of heat
power=650W
time=3600 secs
work done will be 650*3600
2340000.
approximately 2300000J
