A copper rod has a diameter of 1.5 cm long, and is 4 m long. The two ends are maintained at temperatures of 300 K and 800 K. Without using a calculator,

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A copper rod has a diameter of 1.5 cm long, and is 4 m long. The two ends are maintained at temperatures of 300 K and 800 K. Without using a calculator, what is the rate at which is conducted down the rod? A.1.8 Ws B.4.5 J C.2.7 W/s D.2.0 W E.1.5 Js

A copper rod has a diameter of 1.5 cm long, and is 4 m long. The two ends are maintained at temperatures of 300 K and 800 K. Without using a calculator, what is the rate at which is conducted down the rod? A.1.8 Ws B.4.5 J C.2.7 W/s D.2.0 W E.1.5 Js

An sheet of aluminum has a one inch diameter hole drilled in it. If the plate is heated to a temperature of 600 o C then the diameter of the hole will be A.Still one inch B.Slightly larger than one inch C.Slightly less that one inch 1”

An sheet of aluminum has a one inch diameter hole drilled in it. If the plate is heated to a temperature of 600 o C then the diameter of the hole will be A.Still one inch B.Slightly larger than one inch C.Slightly less that one inch 1”

You are given three objects of different masses and materials A.M = 2 kg, c = 900 J/kg/K B.M = 3 kg, c = 700 J/kg/K C.M = 4 kg, c = 500 J/kg/K If you supply the same amount of heat to each, which one experiences the largest temperature change?

You are given three objects of different masses and materials A.M = 2 kg, c = 900 J/kg/K B.M = 3 kg, c = 700 J/kg/K C.M = 4 kg, c = 500 J/kg/K If you supply the same amount of heat to each, which one experiences the largest temperature change?

You have a mixture (by mass) of ice and water in a glass in the kitchen. The kitchen temperature is 20 o C. What is the common temperature of the water and the ice? A.0 K B.100 K C.273 K D.293 K E.300 K F.373 K G.Cannot be determined

You have a mixture (by mass) of ice and water in a glass in the kitchen. The kitchen temperature is 20 o C. What is the common temperature of the water and the ice? A.0 K B.100 K C.273 K D.293 K E.300 K F.373 K G.Cannot be determined

A heat engine exhausts 500 MJ of heat while doing 300 MJ of work. How much heat energy was taken in? A.0 B.300 MJ C.500 MJ D.800 MJ E.1000 MJ

A heat engine exhausts 500 MJ of heat while doing 300 MJ of work. How much heat energy was taken in? A.0 B.300 MJ C.500 MJ D.800 MJ E.1000 MJ

A heat engine exhausts 500 MJ of heat while doing 300 MJ of work. What is its efficiency? A.0 % B.60 % C.40 % D.37½ % E.62 ½ % F.100 %

A heat engine exhausts 500 MJ of heat while doing 300 MJ of work. What is its efficiency? A.0 % B.60 % C.40 % D.37½ % E.62 ½ % F.100 %

At 300 K the average speed of a molecule is 600 m/s. If the temperature of a gas is doubled, what is the new average speed? A.600 m/s B.300 m/s C.424 m/s D.1200 m/s E.849 m/s F.2400 m/s

At 300 K the average speed of a molecule is 600 m/s. If the temperature of a gas is doubled, what is the new average speed? A.600 m/s B.300 m/s C.424 m/s D.1200 m/s E.849 m/s F.2400 m/s