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During operation, the compressor unit of a refrigerator, with mass 75 kg and rotational speed900 rpm, experiences a dynamic force of 200 N. The compressor unit is supported on fouridentical springs, each with a stiffness of k and negligible damping. Find the value of k ifonly 15% of the dynamic force is to be transmitted to the support or base. Also, find theclearance space to be provided to the compressor unit.
the refrigerant is now heated at constant pressure until its temperature rises to 333k. calculate the work done during this process.
explain why a high quality software process should lead to high quality software product.discuss possible problems with this system of quality management.
In order to determine the stress at a greater depth, say at a depth of 16 m, the loaded area should be drawn half as large. This then covers a smaller number of rectangles, so that the stress will be smaller.
Consider a system consisting of liquid water initially at T1 = 318 K, p1 = 3.5 bar undergoing a process to a final state at T2 = 353 K, p2 = 1.5 bar. Use appropriate equation with the data from the table to evaluate change in specific entropy.
Determine the force P required to pull the shaft at a velocity of 3 m/s. Assume the velocity distribution in the gap is linear
A brittle cast iron (E = 15 Msi, ? = 0.2, Sut = 30 ksi, Suc = 100 ksi) hub is shrink-fit onto a solid carbon steel shaft. The hub has initial inner and outer diameters of 3.000 and 6.000 inches respectively. What is the largest diameter the steel sha..
The design specification for a transmission shaft states that the angle of twist must be no more than 1° over a length 20 times the diameter. Using this specification determine the diameter of a solid steel shaft to transmit 150 kW at a speed of 3..
consider a non-ideal vapor-compression cycle where refrigerant 134a flows at a rate of 0.05 kgs. the refrigerant enters
a what is the approximate ductility el of a brass alloy that has a yield strength of 275mpa? what is its tensile
Which approach would you take and why? Under what conditions would the other choice be better?
suppose you are a materials engineer working for a beverage company and have been asked to identify what material
a steady frictionless air at 100 kpa and 25 c flows in a horizontal duct that has a cross sectional flow area reduction
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