A brass rod is placed between two temperature sources so that heat can flow between them. One temperature is 80
and the other temperature is 20
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 
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
E. 18 W
Physics & Space Science
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) N. The x component of the magnetic field is equal to zero. Determine the y component of the magnetic field.
A. ?3.0 T B. +3.0 T C. +5.0 T D. ?5.0 T E. +6.0 T
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Indicate whether the statement is true or false
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a. True b. False Indicate whether the statement is true or false
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