A metal bar is used to conduct heat. When the temperature at one end is 88.0°C and at the other is 15.0°C, heat is transferred at a rate of 19.0 J/s. The bar is then stretched uniformly to twice its original length. If again it has ends at 88.0°C and 15.0°C, at what rate will heat be transferred between it ends?
a. 4.75 J/s
b. 9.50 J/s
c. 19.0 J/s
d. 38.0 J/s
e. 76.0 J/s
a
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