A 2.00-kg copper rod is 50.00 cm long at 23°C. If 40 000 J are transferred to the rod by heat, what is its change in length? ccopper = 387 J/kg·°C and αcopper = 17 * 10-6/°C.
a. 0.022 cm
b. 0.044 cm
c. 0.059 cm
d. More information is needed
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