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An air conditioning system is used to maintain a house at 70F when the temperature outside is 90F. If the air conditioning system draws 5 hp of power when operating, determine the maximum rate of heat removal from the house that it can provide.
a piston-cylinder device contains 0.15kg of air initially at 2mpa and 350oc. the air is first expanded isothermally to
an engine operates on an air standard otto cycle with the compression ratio of 91. the pressure and temperature at the
The acceleration of the car is defined by a=(2t^2+t)m/s^2. Find the position of the car at t = 3 seconds. The car starts from rest.
Determine the theoretical maximum height that a pump could pull water up from a well (i.e. from the vacuum side of the pump). The set-up described is similar to on-farm wells. Assume that atmospheric pressure is exerted on the water at the bottom of ..
An initially empty, well insulated, rigid tank with a volume of 2 m3 is fitted with a mixing device. The tank has two inlets and zero outlets. One inlet is water at 1.07 MPa and 630oC while the other is saturated liquid water. Both enter the tank slo..
you are manufacturing a frame for a vehicle out of some aluminum alloy 6061-t451 tubing. the frame is to be welded
A 20-mm diameter rod made of a ductile material with a yield strength of 350 MPa is subjected to torque of 100 N.m and a bending moment of 150 N.m. An axial force is then gradually applied. Determine the value of force when the rod begins to yield..
determine the tension developed in each cord required for equilibrium of the 21- kg lamp. determine the tension
a Steel ally to be used for a spring application must have a modulus of resilience of at least 2.07 MPa. What must be the metal's minimum yield strength.
the cable is made of steel. what diameter should tar cable b so that the material does not exceed 50 percent of its
a heat pump utilizes a well-insulated compressor to compress r-134 from a saturated vapor at 160 kpa at a rate of 0.85
An evacuated 1-ft3 tank is connected by a valve to a nitrogen supply line flowing air at 120 psi and70oF. A valve is opened allowing air to flow into the tank until the pressure reaches 90 psi. How much mass flowed into the tank and what is its final..
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