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An electric motor weighing 750 lb and running at 1800 rpm is supported on four steel helical springs, each having eight active coils with a wire diameter of 0.25 in. and a coil diameter of 3 in. The rotor has a weight of 100 lb with its center of mass located at a distance of 0.01 in. from the axis of rotation. Find the amplitude of vibration of the motor and the force transmitted through the springs to the base.
combustion products 2 water vapor and 98 dry air by mass flow in a chimney at 34oc and 1 atm. determine a. the dew
a hydraulic power generation turbine-generator plant is installed at a site 200 m below the free surface of a large
A tank of 20 ft3 volume is half-filled with liquid water, and the remainder is filled by vapor at 550 psia. The water is heated until one-half of the liquid (by volume) is evaporated, while an automatic valve lets saturated vapor escape at such a rat..
a long slab is heated to 100degreec on both sides and then exposed to a focused stream of cold air on the top edge -
water is used in a regenerative power cycle where the standard rankine cycle is augmented with one closed feed water
A high strength steel [E = 200 GPa] tube having an outside diameter of 80 mm and a wall thickness of 3 mm is bent into a circular curve having a 52 m radius of curvature. Determine the maximum bending stress developed in the tube
An open pan 210 mm in diameter and 75 mm deep contains water at 25?C and is exposed to dry atmospheric air. Calculate the diffusion coefficient of water in air. Take the rate of diffusion of water vapour is 8.52 x 10-4 kg/h.
on a beautiful standard day your oceangraphic ship sights a water spout in the ease indian ocean. you fix your position
Freshwater is impounded to a height of 11 ft behind a dam as shown. Determine the magnitude and location of the resiltant force on the 4-ft by 4-ft gate.
What load is needed to generate a transverse center displacement of 5 mm for an aluminium beam of 15 cm length, 2 cm width and 2 mm thickness (in three-point bending). Determine what strain you expect at the bottom surface for this deflection for Al ..
If a torque of 0.046 N/m is measured at a rotational speed of 120 rpm, estimate the viscosity of the liquid. Neglect the contribution to the torque from the cylinder ends and assume a linear velocity profile.
A single plate clutch with both sides of the plate effective is required to transmit 25 kW at 1600 r.p.m the outer diameter of the plate is limited to 300 mm and the intensity of pressure between the plate not to exceed 0.07 N/mm^2.
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