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A compressor of mass 120 kg has a rotating unbalance of 0.2 kg-m. If an isolator of stiffness 0.5 MN/m and damping ratio 0.06 is used, find the range of operating speeds of the compressor over which the force transmitted to the foundation will be less than 2500 N.
a thin-walled circular tube must support a torque of 6 kn.m and a pure bending moment of 4.4 kn.m. if the wall
velocity at impeller exit is 30.5 m/s and the slip factor is .9. Given that the flow area at impeller exit is .1m^2 and the total efficiency of the impeller is 90%, determine the mass flow rate.
What is the maximum value of the initial angular velocity that can be given to the pendulum without violating this smallangle approximation?
air is heated at steady state as it flows through a horizontal constant area duct. at the inlet the pressure is 2 bar
r134a is condensed at a constant temperature of 30degc as it flows through the condenser of a refrigerator by rejecting
a straight roller bearing is subjected to a radial load of 12 kn. the life is to be 4000 h at a speed of 750 revmin.
Determine the force exerted by the deltoid muscle on the upper arm at A and the x- and y-components of the force reaction at the shoulder joint O
What will the transmissibility be if the frequency of the base motion changes to 100 Hz? What if it reduces to 25 Hz?
a nylon thread is to be subjected to a 10-n tension. knowing that e 3.2 gpa that the maximum allowable normal stress
a building wall is made of 200 mm of poured concrete on the outside 100 mm of fiberglass insulation in the middle and
an adiabatic capillary tube is used in some refrigeration systems to drop the pressure of the refrigerant from the
2 instructors grade on a the curve that is give a fixed percentage of each various leter grades to each of their
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