A kilogram of water 
is stirred using a 400 watt device for 5 minutes. At the end of this time the temperature of the water has increased by
How much heat was lost to the surroundings?
A. 90.1 kJ
B. 57.3 kJ
C. 82.6 kJ
D. 38.9 kJ
B. 57.3 kJ
Physics & Space Science
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