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Physics, 15.10.2019 06:50, Juliianatafur22
If an engine operates on an input temperature of 800k and an exhaust temperature of 600k, calculate the efficiency of the engine.
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Answers: 2
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The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.
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Physics, 23.06.2019 20:00, anna8352
If 25 ml of each of the liquids in the answer choices below were poured into a 100 ml beaker, which would form the second from the bottom layer? a. sea water – density of 1.024 g/ml b. mineral oil – density of 0.910 g/ml c. distilled water – density of 1.0 g/ml d. petroleum oil – density of 0.820 g/ml
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If an engine operates on an input temperature of 800k and an exhaust temperature of 600k, calculate...
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