Calculate the forces and that the supports exert on the diving board of Fig. 9–49 when a 52-kg person stands at its tip.
(a) Ignore the weight of the board.
(b) Take into account the board’s mass of 28kg. Assume the board’s CG is at its center.

In a series circuit the __ is the same at every point

Aperson touches a large chunk of ice with their hand and remarks, “this is making me cold.” explain what this person is feeling. is the ice transferring “cold” to the person? is there a heat transfer occurring? explain.

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.