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1. The semicylindrical shell of mass m and radius r is rolled through an angle () by the force P which re- mains tangent to its periphery at A as shown. If P is slowly increased, plot the tilt angle () as a function of P up to the point of slipping. Determine the tilt angle ()max and the corresponding value Pmax for which slipping occurs. The coefficient of static friction is 0.30.
2. A heavy cable with a mass of 12 kg per meter of length passes over the two fixed pipes 300 m apart on the same level. One end supports a 1600-kg cylinder. By experiment it is found that a down- ward force P of 60 kN is required to induce slipping of the cable over both pipes at a constant rate. Determine the coefficient of kinetic friction µ,k between the cable and the pipes, the maximum tension T in the cable between the pipes, and the sag h in the cable.
air enters an evaporative cooler at 95 kpa 35 degrees celcius and 30 relative humidity and exits saturated. determine
an air-water-vapor mixture enters a cooling apparatus at 40 degrees c and relative humidity is 80 percent. design calls
Determine the force F required to maintain the position shown and determine the support reactions at point A and determine the support reactions and draw the internal shear force and bending moment diagrams.
If the motorcycle has a deceleration of a_t = -(0.001s);{rm m}/{rm s}^{ 2 } and its speed at position A is 18 m/s, determine the magnitude of its acceleration when it passes point B.
the wing is supported by a strut be with ball-and-socket joints at b and e and by bearings at a and f. the bearings
water is the working fluid in an ideal rankine cycle. steam enters the turbine at 1400 lbfin2 and 1000degf. the
5ft3 of ammonia is initially at 100 psi and a specific volume of 0.024ft3/lbm is heated or cooled to make this an isothermal process until half of the mass is gas and the remaining is liquid. At what temperature does this process occur and how much w..
a simply supported beam of length 18 ft. is subjected to a trapezoidally distributed load that has a value of 3 kipft
air at 101 kpa and 21 degree c dry bulb and 60 percent relative humidity enters an industrial dryer and is discharged
A sandbag is dropped from a balloon which is ascending vertically at a constant speed of 6m/s. If the bag is released with the same upward velocity of 6m/s when t=0s and hits the ground when t=8s, neglecting air resistance,
the shaft of a gearbox is coupled through a no. 60 chain drive rotating a concrete mixer at 180 rpm clockwise. the
Determine (a) the exit temperature, (b) the exit relative humidity of the air, (c) the exit velocity.
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