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The 3-m plank shown in section has a density of 800 kg /m3 and is hinged about a horizontal axis through its upper edge O. Calculate the angle e assumed by the plank with the horizontal for the level of fresh water shown.
A piston-cylinder assembly which initially has a volume of 1 m^3 is filled with 0.7 kg of air. The pressure on the air is always maintained at 1.2 bars. Heat transfer is allowed to take place until the volume is 60 percent of the initial value. You m..
A single-stage ideal regenerative steam cycle has a boiler pressure and temperature of 5000 kPa and 500 C, and a condensing pressure of 10 kPa. The extraction pressure is 500 kPa. If the regenerative heater is a closed heater with the condensate pump..
Air (ideal gas) inside a cylinder filled with a frictionless piston undergoes a polytrophic process having an exponent n = 1.33. The initial pressure of the air is 3.34 MPa and the T (final) is 750 K and during the process the volume of the air is in..
two particles are moving along a straight line starting beginning from x0 0 with a velocity of v0 10 at time t 0.
calculate the exergies of two closed systems respectively 1 kg of steam at 800 kpa and 180 degc and 1 kg of r-134a at
determine the force between the jaws of the clamp in terms of a torque exerted on the handle of the adjusting screw.
One easy way to measure diffusion coefficients is the diaphragm cell shown in Fig. 2.2-4. These cells consist of two well-stirred volumes separated by a thin porous barrier or diaphragm. In the more accurate experiments, the diaphragm is often a sint..
liquid at 23 degree c flows at 2 ms over a smooth sharp-edged flat surface 12 cm in length which is kept at 57 degree
you balanced a pump impeller by placing a 5 gram weight at a radius of 100 mm. the original vibration amplitude was 10
air enters a compressor operating at steady state with a pressure of 1 bar a temperature of 20degc and a volumetric
Consider a cold air-standard Diesel cycle. At the beginning of the compression process, the pressure is 0.1 MPa, the temperature is 320 K, and the volume of air is 0.02 m3. The maximum temperature of the cycle is 1500 K, and the compression ratio is ..
the 0.5m long container shown in the figure accelerates downhill so that the liquid surface is parallel to the road. a
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