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Figure P1.48 shows an object whose mass is 5 lbm attached to a rope wound around a pulley. The radius of the pulley is 3 in. If the mass is lowered at a constant velocity of 5 ft/s, determine the power transmitted to the pulley, in horsepower, and the rotational speed of the pulley, in revolutions per minute (rpm). The acceleration of gravity is g = 32.2 ft/s2
By how much will the clamping force on the joint be reduced? Sketch the new joint diagram, assuming maximum initial preload?
consider the steel balls from 5.6 except now the air tempincreases with time as tinft325kat where a 0.1875ks.asketch
a round casting is 0.1 m in diameter and .5 m in length. another casting of the same metal is elliptical in
Draw in Third Angle Projection. the following orthogonal views - a Sectional Side View from 8 on a vertical cutting plane through the centre line of the bearing journals
Air is compressed in a steady-flow compressor via a polytropic process from 15 psia and 60ºF (State 1) to 75 psia and 294ºF (State 2). Calculate the specific work (Btu/lbm) for the compressor. Determine the specific heat transfer (Btu/lbm) for the co..
an agitation system is to be designed for a fluid having a density of 950kgm3 and viscosity of 0.005pas. the vessel
for certain liquid mu 6 times 10-5 lb.sft2 at 50 degree f and mu 1.5 times 10-5lb.sft2 at 180 degree f. make use of
Consider excitations from level εi = -4 eV with 1025 states/m3 to level ε j = -2.5 eV with 1024 states/m3 in a semiconductor at 295 K. (Treat the states as band-edge equivalent states if you wish.)
A cylindrical bar of a metal alloy of 1.5cm in diameter and 38cm in length is loaded in tension which produces an increase in length of 0.19cm. If its yield strength is 240 MPa, its tensile strength is 310 MPa and its elastic modulus is 110 GP, deter..
a piece of 0.1 c steel is to be carburized at 930c until the carbon content is raised to 0.45 c at a depth of 0.020 in.
Liquid propane (C3H8) at 258C, 1 atm, enters a well- insulated reactor operating at steady state. Air enters at the same temperature and pressure. For liquid propane, h8f 5 2118,900 kJ/kmol. Determine the temperature of the combustion produc..
apply risk management techniques all steps learned in the class to analyze the failure and what could have been done to
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