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How to solve 2 and 3
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How to solve 2 and 3

How to solve 2 and 3-example-1
User Eric Lange
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Use the Heat formula for both problems.

q=m*c*∆t

Where
q= heat in Joules
m= mass in grams
c= specific heat which is a constant 4.18
∆t= change in temperature
User MaxS
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