zanaplen27
13.10.2021 •
Engineering
The drag force, Fd, imposed by the surrounding air on a vehicle moving with velocity V is given by
Fd = CdA^1/2V^2
where Cd is a constant called the drag coefficient, A is the projected frontal area of the vehicle, and r is the air density. Determine the power, in hp, required to overcome aerodynamic drag for an automobile moving at:
a. 25 miles per hour.
b. 70 miles per hour. Assume Cd = 0.28, A = 25 ft^2, and rho = 0.075 lb/ft^2.
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Ответ:
True
Explanation:
Microstructure is the very small scale structure of a material, defined as the structure of a prepared surface of material as revealed by an optical microscope above 25× magnification. ...