A35° api distillate at 60 °f is to be pumped a distance of 2,000 ft through a 4 inch schedule 40 horizontal pipeline at a flow rate of 500 gpm. what power must the pump deliver to the fluid if the pipeline is made of (a) plastic drawn tubing; (b) commercial steel (light rust); (c) galvanized iron? assume the pipe is horizontal, p1 = p2.

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?