13-06-2017
Physics

contestada

A block of copper (c = 390 J/kg°C) is heated from 20.0 C to 60.0 C. How much heat (in J) is absorbed by the copper if its mass is 45.0 g?

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20-06-2017

Q=cm x change in t
Q= (390 J/kg C) x (0.045 kg) x (40.0 C)
Q= 702 J

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