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A certain metal frame supports a platform and motor. The Combined mass of the platform and motor is 600kg. At a motor speed of 800 rpm, the platform oscillates with amplitude of 5mm. When the speed is 1000 rpm, the amplitude is 14 mm. Determine the natural frequency of the system and the spring constant of the frame.
calculate the static thrust of the turbojet engine having mass flow 88lbmsec the ratio of air and fuel mass flowing
a 25 cm long glass fiber e 72.2 gpa v 0.25 has a fracture strength of 75 mpa. what is the minimum diameter of a fiber
the inclined-tube manometer has d 76 mm and d 8 mm and is filled with meriam red oil. compute the angle that will
(a) Find the rate of heat transfer (kW) to the water. (b) Draw a schematic of the system. (c) Determine the air outlet temperature (°C)
the density of liquid water at 25 c is 997 kgm3 and the specific gravity of solid water ice at 0 c is 0.98. 100 kg of
an industrial water shutoff valve is designed to operate with 40lbs of force and will encounter 150lbs of resistance
An air compressor takes air from outdoors at 28deg C and 101.2kPa and compresses it to 790kPa and 50 deg C. The air input to the compressor is found to be 22.67m3/hr. Estimate the required Hp to operate the compressor.
Calculate the specific enthalpy at the compressor outlet. Include in your calculations the changes in kinetic and potential energy.
consider the power system as designed below. the duty fluid is water and has a mass flow 0.75 kg s and all piping
a plane wall with surface temperature 350c is attached with straight rectangular fins k 235 wm k. the fins are exposed
a closed tank having a volume of 2ft3 is filled with 0.30 lb of a gas. a pressure gage attached to the tank reads 12
air undergoes a process with the states given below. find the change of entropy using the ideas gas table and compare
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