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A 50kg uniform box is held on an inclined surface by a horizontal rope which passes around a pulley. The coefficient of static friction between the box and the surface is 0.5 and the pulley is frictionless. Determine The minimum rope tension T necessary to hold the box in place The normal force N and the friction force F acting on the box when the rope tension is as determined in part a.
a rankine steam power plant should operate with a high pressure of 3 mpa a low pressure of 10 kpa and the boiler exit
5 lbm of refrigerant 22 r-22 is contained in a piston cylinder device. the r-22 initially at a pressure of 30 psia and
a. Find the temperature at the interface between the rod and sleeve and on the outer surface. b. What is the temperature at the center of the rod?
air is moving between two parallel plates at 40c and 6.667 ms. what is the minimum distance h between the plates so
a vehicle is to be propelled by a jet of water inclined 15 degrees impinging on a vane as shown in figure 16.16. the
a piston-cylinder contains air at a pressure of 500 kpa. the piston movement is resisted by a spring and atmospheric
rod ab consists of two cylindrical portions ac and bc eac with a cross sectional area of 1750mm2. portion ac is made of
1. What is a parting line or parting surface? 2. What is fluidity? 3. What type of shape modifications or allowances are generally incorporated into a casting pattern?
an adiabatic compressor compresses air from atmospheric pressure and 70 degf at a rate of 10000 acfm actual cubic feet
an oil well is drilled in the atlantic ocean where the water depth is 350 meters.a suppose methane gas forms a bubble
given a rectangular sample of ductile iron 60-40-18 with cross sectional dimensions 0.8 in x4 in calculate the stress
Two kilograms of air within a piston-cylinder assembly execute a carnot power cycle with maximum and minimum temperatures of 750k and 300k, respectively.
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