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Physics, 21.06.2019 23:30
To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?
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Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.
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Physics, 22.06.2019 23:30
How is the ideal mechanical advantage of a wheel and axle calculated?
Answers: 1
If y = 0.02 sin (20x – 400t) (si units), the wave number is...
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