Multiple Choice
A machine part consists of 0.10 kg of iron (of specific heat 470 J/kg ∙ K ) and 0.16 kg of copper (of specific heat 390 J/kg ∙ K) .How much heat must be added to the gear to raise its temperature from 18°C to 53°C?
A) 910 J
B) 3800 J
C) 4000 J
D) 4400 J
Correct Answer:
Verified
Correct Answer:
Verified
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