Ameter stick is supported by a pivot at its center of mass. assume that the meter stick is uniform and that the center of mass is at the 50 cm mark. a)if a massm1= 80 g is suspended at the 30 cm mark, at which cm mark would a mass m2= 110 g need to be suspended for the system to be in equilibrium?

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.