When temperature is plotted against entropy, the area under the process path is equal to
A) the work done.
B) the heat transferred.
C) the change in internal energy.
D) the heat added less the work done.
B
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A kiloampere ? hour is a unit of:
A) current B) charge per time C) power D) charge E) energy
Besides Earth, which terrestrial planet also has seasons?
A. Mercury B. Mars C. Venus D. Seasons are unique to Earth.
Compared to Earth, Venus spins very rapidly on its axis
Indicate whether the statement is true or false
Air is flowing through a rocket nozzle. Inside the rocket the air has a density of 5.25 kg/m3 and a speed of 1.20 m/s
The interior diameter of the rocket is 15.0 cm. At the nozzle exit, the diameter is 2.50 cm and the density is 1.29 kg/m3. What is the speed of the air when it leaves the nozzle? A) 176 m/s B) 123 m/s C) 88.0 m/s D) 45.7 m/s E) 29.3 m/s