Ahollow aluminum cylinder made of 2014-t4 has an outside diameter of 2.50 in. and a wall thickness of 0.085 in. its length is 14.5 in. what axial com- pressive force would cause the cylinder to shorten by 0.005 in.? what is the resulting stress in the aluminum?

Asimple speed reducer is composed of 2 spur gears. the pinion gear has a pitch diameter of 0.75" and 36 teeth while the driven gear has a pitch diameter of 4.0" and 192 teeth. a)-what is the diametral pitch of each gear? b)-if an electric motor rotating ccw at 3000 rpm is coupled to the pinion, what is the rotational speed of the driven gear? c)-if the torque delivered to the pinion is 1 n-m, what is the torque on the driven gear? d)-what is the power transmitted by the gear train?