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A 0.15-m-diameter pulley turns a belt rotating the driveshaft of a power plant pump. The torque applied by the belt on the pulley is 200 N m, and the power transmitted is 7 kW. Determine the net force applied by the belt on the pulley, in kN, and the rotational speed of the driveshaft, in RPM.
sixteen kg of air and two kg of helium gas are sealed in a rigid and insulated internal-piston-cylinder device.
the water level in a tank is 20 m above the ground. a hose is connected to the bottom of the tank and the nozzle at the
What is the composition of the alloy and what is the temperature at which the first solid phase solidifies? (Estimates rounding to convenient numbers are sufficient.)
a steam compressor is used to increase the pressure of saturated water vapor at 1000 kpa to 1500 kpa. the flow rate is
argon enters an insulated turbine operating at steady state at 1000 c and 2 mpa and exits at 350 kpa. the mass flow
a strip of metal is 250 mm long. it is stretched in two steps first to 300 mm and then nbspto 400 mm. show that the
A rigid tank with a volum of 2.5m^3 contains 5kg of saturated liquid-vapor mixture of water at 75deg C. Now the water is slowly heated. Determine the temperature at which the liquid in the tank is completely vaporized
the power output of a steam turbine is 30 mw. determine the rate of steam flow in the turbine for saturated steam
consider a household 120 v two-plug electric outlet protected by a 15 a circuit breaker. a you plug in a hair dryer and
compute the overall thermal resistance of a wall made up of 100 mm brick 1920 kgm3 and 200 mm normal weight concrete
refrigerant 134a enters the capillary tube of a refrigerator as a saturated liquid at 0.8 mpa and is throttled to a
Cortical bone gets weaker with aging, but it turns out that diaphyseal diameters can also change with aging, particularly in males, such that the safety factor of the diaphysis is approximately constant with aging.
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