Posted by **help** on Tuesday, December 11, 2012 at 5:23pm.

* A 50 gram sample of an unknown metal warms from 18 to 58 after absorbing 800 joules of energy. what is the specific heat of the metal?

*copper has a specific heat of 0.387 j/g degree celsius. what is the mass of a piece of copper that undergoes a

21.0 C temperature change when it absorbs 721 J of energy?

*How many joules of energy must be absorbed to raise the temperature of 21 grams of water from 25 C TO 30 C

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