1. A nuclear power plant contains a heat engine that operates between the temperatures of 150oC...

1. A nuclear power plant contains a heat engine that operates between the temperatures of 150^oC and 677^oC.

(a) What is the Carnot efficiency of the engine?

(b) If the engine exhausts energy to the cold reservoir at a rate of Q_C = 7.0 × 10⁸ J per second, how much heat energy must be flowing into the engine from the hot reservoir (Q_H) each second?

2. A house has a flat (horizontal) roof. If the wind then blows over the top of the house at 16 m/s and the air inside of the house is circulating at 0.5 m/s,

(a) What is the difference in pressure inside the house compared to outside the house? The density of air is 1.23 kg/m³.

(b) What is the net force on the roof due to the wind if its area is 170 m², and what is the direction of this force?

Expert Solution

genius_generous answered 2 years ago

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