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Two concentric helical compression springs made of steel and having the same length when loaded and when unloaded are used to used to support a static load of 3 kN. The outer spring has D =50 mm, d = 9mm, and N =5; the inner spring D =30 mm, d=5 mm, and N =10. Determine the deflection and the maximum stress in each spring.
A 90N force is applied to control rod AB as shown. Knowing the length of the rod is 225mm, determine the moment of the force about point B by resolving the force into components along AB and in direction perpendicular to AB?
a 600 mw coal-fired power plant has an overall thermal efficiency of 38. it is burning coal that has a heating value of
a 4m long quarter-circular gate of radius 3 m and of negligible weight is hinged aboutnbspits upper edge a. the gate
Calculate the e?ciency of the furnace if the speci?c heat capacity of the water is cp = 4.2kJ/(kgK) and the zero level of enthalpy is at 0?C! (η = 79.6%)
a piston cylinder device contains 1 kg of liquid water at 200kpa and 25oc. heat is added to the water in the cylinder
how long would it take to use up current reserves? suppose the total resource is five times current reserves; if the use rate continues to grow at 2.6 percent, how long would it take to use up the resource?
a steel strut is pinned at both ends. the strut has a solid circular cross section and is 6 m long. the strut
a stone is dropped into a lake causing circular waves whos radii increase at a contant rate of .5 ms at what rate is
A refrigerating plant operating between temprature limit of 253k and 307k provides 4.5kJ/s of refrigerating effect. If the refrigerating efficiency of the plant is 0.76. calculate the power required to drive the plant.
milk is to be transported from texas to california for a distance of 2100 km in a 7-m-long 2-m-external-diameter
steam in a piston-cylinder assembly undergoes a polytropic process with n2 from an initial state where p 500 psia and
The explanation provided below, provide the solution to the problem in simple and easy to understand steps. A turbofan engine on a test stand in the maintenance shop is being run at a continuous setting of 22,700 lbs of thrust. The TSFC is 0.5 lbs/..
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