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A stone is released from an elevator moving up at a speed of 12 ft/s and reaches the bottom of the shaft in 2.5 s. a How high was the elevator when the stone was released? b With what speed does the stone strike the bottom of the shaft?
An air bubble rises from the bottom of a well where the temperature is 25°C, to the surface where the temperature is 27°C. Find the percent increase in the volume of the bubble if the depth of the well is 5 m. Atmospheric pressure is 101,528 Pasca..
a refrigeration system using r-22 as the working fluid has condenser and evaporator pressures of 250 psi and 30 psi
nitrogen gas at 60 kpa and 7deg c enters an adiabatic diffuser steadily with a velocity of 275 ms and leaves at 85 kpa
determine the force exerted by each cylinder in raising the crate for u = 60°, a 5 0.70 m, and L = 3.20 m. Show that the result obtained is independent of the distance d.
air enters a compressor at 300 k and 100 kpa at a volumetric flow rate of 4 m3s. the air is compressed such that the
draw the free-body diagram and write the corresponding elemental equation for a spring element with the following
consider an aircraft powered by a turbojet engine that has a pressure ratio of 9. the aircraft is stationary on the
air contained within a piston-cylinder assembly undergoes three processes in series a. process 1-2 compression at
a motorcycle is traveling at 60 fts a truck is also traveling at the same velocity. if the motorcycle accelerates at 6
a particle moves along a straight line with an acceleration of a 53s13 s52ms2 where s is in meters. determine the
the position of a point p on a line is given by the equation x t sinpi t2. the point starts moving at t0. find the
a 500 mw coal-fired power plant is burning coal with a heating value of 12000 btulb. the coal contains 2.0 sulfur. the
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