How much time will it take a car travelling at 88 km/hr (55 mi/hr) to travel 500km

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.

How to know which equation of motion to use where?explain

How much hereditary information is contain in a human sex cell