Physics, 29.10.2019 21:31 dallasherncastrillo
The sun has a radius of 6.955 x 108 km and a rotational period of 25.38 days. what is the difference is there in the peak of the observed spectrum between light received from the approaching side of the sun and from the receding side of the sun? observations from the middle of the sun place the spectral peak at 480nm.
Answers: 3
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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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If we compare the force of gravity to strong nuclear force, we could conclude that
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The sun has a radius of 6.955 x 108 km and a rotational period of 25.38 days. what is the difference...
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