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A tank has a volume of 0.35m^3 and initially contains saturated vapor at 333 kPa. The valve is next opened and steam from the line at 1.35 MPa and 288 degrees Celcius flows into the tank until the pressure is 1.35 MPa. Find the mass of steam that flows into the tank.
water flows through a 60 mm diameter tube that suddenly contracts to 30 mm diameter. the pressure drop across the
A 50 hp motor with an efficiency of 0.80 is to be replaced by a newer model motor with an efficiency of 0.90. The motor is expected to operate 3000 hours per year. The cost of electricity in our area is $0.06 per kWhr.
Calculate the yield stress of the material and the force required to produce yield - determine the bulk modulus of the material.
the beam is to be hoisted using two chains if the resultant force is to be 600n directed along the positive y axis
a battle has erupted over a local power plant owners decision to raise the power delivered by the plant from 186 mw to
air at the rate of 18 kgs is drawn into the compressor of a jet engine at 55 kpa and -23oc and is compressed reversibly
What is the work you get out of each kJ of heat extracted from the basin? Repeat for the case that the water is at 100C. Comment on why efficient car engines run so hot.
Cantilever Beam with maximum tensile strength. A cantilever beam is to be made using a symmetrical I section beam. The cantilever is to carry a load of 40kN at a distance 2.5m from the fixed end. The situation allows for a depth of I beam to be no..
The rigid gate, is hinged at O and rests against a rigid support at B. What minimum horizontal force, P, is required to hold the gate closed if its width is 3.9 m? Neglect the weight of the gate and friction in the hinge. The back of the gate is e..
a mountain climber carries a barometer which reads 30.1 in hg at the base of the mountain. after her climb the
Subject a piece of steel to a case hardening process in which carbon is forced by diffusion through a layer on the surface of the piece. For this purpose, the piece of steel will be placed in a carbon-rich atmosphere in a special furnace.
a 10 kw electric heater is used to heat 2 kg of air contained in an insulated rigid tank from 400 kpa and 50 degc to
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