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A pump steadily draws water at a mass flow rate at 20 lbm/s through a piping arrangment. At the pipe inlet, the pressure is 14.7 lbf/in^2, the temperature is 68 F, and the velocity is 10 ft/s. At the pipe exit, the pressure is 20 lbf/in^2, the temperature is 68 F, and the velocity is 40 ft/s. The exit is located 50 ft above the inlet. Determine the power required by the pump, in Btu/s and horsepower.
air at 30 celcius and 2 mpa flows at steady state in a horizontal pipeline with a velocity of 25ms . it passes through
three shopping carts are initially stationary on a slope the friction in the wheels allowing them to stay still. a
the annual cost of operating a heat pump at year-end prices is r with units of yr. the costs are expected to inflate at
It is necessary to design a square-section composite bar that will withstand an applied load without deflecting more than a specified amount.The design specification for the bar, including its dimensions and loading criteria, is given below.
find a cylindrical container that is large enough that it takes at least one minute to drain you may have to create an
a 2-kg sphere a is moving toward the right at 4 ms when it strikes the end of a 5 kg slender bar b. the coefficient of
A light aircraft with a wing area of 200 ft2 has a lift coefficient of 0.4 and a drag coefficient of 0.05. the power required to maintain level flight is 66hp. determine the weight of the airplane. recall power is force in the direction of velo..
nitrogen at 900kpa and 300oc is expanded adiabatically and reversibly in a closed system to 100kpa. determine the
a rock climber of weight w has a rope attached a distance h below him for protection. suppose that he falls and assume
on a given day a barometer at the base of the washington monument reads 29.97 in. of mercury. what would the barometer
A plane can fly 305 mph in still air. If it can fly 185 miles downwind in the same amount of time it can fly 120 miles upwind, find the velocity of the wind.
1 current airbag regulations specify that they must only pass a test designed to protect a 175 pound male who is not
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