A Brass Rod Is Placed Between Two Temperature Sources So $^{\circ}$

A brass rod is placed between two temperature sources so that heat can flow between them.One temperature is 80 $^{\circ}$ C and the other temperature is 20 $^{\circ}$ C.The length of the rod is 50.0 cm and the cross sectional area is 15.0 cm².If the coefficient of thermal conduction for brass is 100 W/m $^{\circ}$ C,then what is the heat flow between the hot temperature and the cold temperature?

A) 7.5 W
B) 8.2 W
C) 9.4 W
D) 12 W
E) 18 W

Correct Answer:

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