Q1The motor M of the hoist shown in Fig. 14-16a lifts the 75-lb crate C so that the acceleration of point P is 4 ft/S2. Determine the power that
must be supplied to the motor at the instant P has a velocity of 2 ft/s.
Neglect the mass of the pulley and cable and take E = 0.85

Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)

For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.

Acircular aluminum shaft mounted in a journal is shown. the symmetric clearance gap between the shaft and journal is filled with sae 10w-30 oil at t 30°c. the shaft is caused to turn by the attached mass and cord. develop and solve a differential equation for the angular speed of the shaft as a function of time.