To what ages does the Child Restraint Law apply? All Children 5 Years Of Age Or Younger Must Use A Restraint Device When Riding In A Motor Vehicle.
All Children 3 Years Of Age Or Younger Must Use A Restraint Device When Riding In A Motor Vehicle.
All Children 7 Years Of Age Or Younger Must Use A Restraint Device When Riding In A Motor Vehicle.

Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false

Air at a pressure of 1atm and a temperature of 40 c is in parallel flow over the top surface of a flat plate that is heated to a uniform temperature of 120 c. the plate has a length of 0.40m (in the flow direction) and a width of 0.15m. the reynolds number based on the plate length is 50, 000. what is the rate of heat transfer from the plate to the air? if the free stream velocity of the air is doubled and the pressure is increased to 10 atm what is the rate of heat transfer?

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?