A fundamental physical reason for the bicycle's high efficiency as a transportation device is
A) it is a wheeled vehicle.
B) it is not a heat engine.
C) Both of the above.
D) it is a heat engine, but one that does not burn fossil fuels.
E) Nonsense, trains and airplanes are actually more efficient than bicycles.
C
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Write the node equations for the model of heat transfer through the compressor housing section shown in Figure 2-66. Then solve for the node temperatures by using EES, Mathcad, or MATLAB.
Exclusion Principle: In a hydrogen atom, a given electron has ? = 7. How many possible values can m1 have?
A. 6 B. 7 C. 15 D. 98
Determine the overall heat transfer coefficient based on the inside diameter of the tube and shell heat exchanger shown in the figure.
"30/40 vision" is a measure of
A) eyeball size. B) chromatic aberration. C) visual acuity. D) astigmatism. E) the resolution of the eye.