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A 100-watt motor (60% efficient) is used to raise a 100-kilogram load 5 meters into the air. How long, in units of seconds, will it take the motor to accomplish this task?
determine the maximum velocity to which water can be accelerated by the nozzles before striking the turbine blades.
a first-order system with a time constant equal to 10 ms is subjected to a sinusoidal forcing with an input amplitude
a 6.44 kg steel ball is at a height of 8.12 meters above the floor traveling at a velocity of 4.69 ms and has an
the exhaust gas from a diesel-powered electric generation plant will be used to generate steam in a shell-and-tube heat
a thin-walled cylindrical gas vessel has a mean radius of 3 ft and a wall thickness of 12 in. the yield stress of the
engineers plan to build a pipeline 1000 km in length to transport water to a drought-stricken region. they wish to have
Determine the velocity ratios that can be achieved by the gear box in terms of number of teeth in the sun wheel and determine which component (out of the sun wheel, planet carrier and annular wheel) has to be used as the input shaft to get the req..
refrigerant 134a at 700 kpa and 40oc is expanded adiabatically in a closed system to 60 kpa. determine the work
A 0.453-Kg mass attached to a light spring elongates it by 7.87mm. Determine the natural frequency of the system.
a heat engine is operating on carnot cycle. the waste heat from this engine is rejected to a nearby lake at 62f at a
determine the largest intesity w0 of the distributed load that the beam can support if the beam can withstand a maximum
a spring 75 nm has an equilibrium length of 1.00 m. the spring is compressed to a length of 0.50m and a mass of 2.1kg
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