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Determine the mass (in kg) and weight (in N) of the air contained in a typical school classroom whose dimensions are 40 ft x 60 ft x 12 ft. Make suitable assumptions for temperature and pressure given that the classroom is at Penn State in University Park, PA, (in Central Pennsylvania) and it is a typical Memorial Day (late May) weekend.
a certain process requires 2.3 cubic feet per second of water to be delivered at a pressure of 30 psi. this water comes
A 9º wedge is inserted using a force of 1000 lbs. The static coefficient of friction between the wedge and the log is 0.50. Determine the force required to pull the wedge out.
a centrifugal pump can provide a 20-m head rise at 75 revmin. if the rotation speed increases to 90 revmin what will be
a 20-m3 tank contains nitrogen at 23degc and 600 kpa. some nitrogen is allowed to escape until the pressure in the tank
in an ore-mixing operation, a bucket full of ore is suspended from a traveling crane which moves along a stationary bridge. the crane is traveling at a speed of 3m/s when it is brought to a sudden stop. Determine maximum horizontal distance throug..
duncan hanes is considered one of the best design engineers for xyz corporation. his expertise lies in the area of
a steam rankine cycle operates between the pressures of 2500 psi in the boiler and 1 psi in the condenser. the turbine
an air standard dual cycle has a compression ratio of 18 and a cutoff ratio of 1.1. the pressure ratio during the
A t=10-mm-thick horizontal layer of water has a top surface temperature of Tc = - 4 C and a bottom surface temperature of Th = 2 C. Determine the location of the solid-liquid interface at steady state.
Derive the operational transfer function and the sinusoidal transfer function for an RC high-pass filter. Plot the step response and the complete frequency response (magnitude and phase).
Two lead lumps attract each other gravitationally with force F. Now you double the mass of one lump, halve the mass of the other lump, and double the separation between them. What is the magnitude of the new gravitational force between them?
you are blanking a square using a straight edge punch. if the punch is angled to be at a shear angle of 10 degrees how
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