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A simply supported beam loaded by two forces is shown in the figure. Select a pair of structural steel channels mounted back to back to support the loads in such a way that the deflection at midspan will not exceed 1/ 16 in and the maximum stress will not exceed 6 kpsi. Use superposition.
Refrigerant-134a enters the condenser of a residential heat pump at 900 kPa and 40°C at a rate of 0.02 kg/s and leaves at 900 kPa as a saturated liquid. If the compressor consumes 1.2kW of power, determine (a) the COP of the heat pump and (b) the rat..
Water vapor enters a turbine operating at steady state at 1000°F, 140 lbf/in2, with a volumetric flow rate of 12.6 ft3 /s, and expands isentropic ally to 2 lbf/in2. Determine the power developed by the turbine, in hp. Ignore kinetic and potential ene..
A carnot heat engine receives heat from a reservoir at 925oC at a rate of 730 kJ/min and rejects the waste heat to the ambient air at 24oC. The entire work output of the heat engine is used to drive a refrigerator that removes heat from the refrigera..
consider a body of arbitrary shape. if the pressure distribution over the surface of the body is constant e.g.
The acceleration due to gravity at sea level is g = 9.81 m/s2 . What is the person"s weight at sea level? The acceleration due to gravity on the moon is g = 1.62 m/s2 . What would the person weigh on the moon?
A hypersonic gun tunnel is used to generate short-duration, high-speed flows and typically consists of two cylindrical volumes separated by a diaphragm. One end of the tunnel (the driver end) is pumped to a high pressure, while the other end (the dri..
Magnetic resonance imaging (MRI) employs a strong magnetic field to produce detailed pictures of internal organs and tissues. As shown in Fig., the patient reclines on a table that slides into the cylindrical opening where the field is created.
in a planned experiment a thermocouple is to be exposed to a step change in temperature. the response characteristics
the pedal-chainwheel unit of a bicycle is shown in the figure. the left foot of the rider exerts the 40-lb force while
consider a reheat cycle utilizing steam as the working fluid. steam enters the high pressure turbine at 3.5 mpa 400oc
consider a magnet moving in a coil of n turns. this system can be modelled as mass spring damper system. the damping
Determine the cutting force F applied by the blade DE to the bar at G in terms of the force P applied to the handle of the heavy-duty cutter. Assume that the cutting force F is perpendicular to the lower edge of the blade DE.
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