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The specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams? I can not understand expand questions of math please can you explain? What grade level will you learn what bile pigment is? How do I perform math problems similar to (5y-3) (2x+7y) (6-8x)? How long can life survive on