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Angular Momentum of a Particle A particle P with mass m is moving such that its position vector has the components x = aθ3, y = 2aθ, z = 0, where θ = θ(t). Determine the angular momentum of the particle about the point B (0, a, 0).
consider the isothermal expansion of 4.50 mol of an ideal gas at 450 k from an initial pressure of 12.0 bar to a final
A prototype pump with an impeller diameter of 0.8 m is to be tested at 725 rpm under dynamically similar conditions as the model. Determine the head of water the pump must overcome, the volume flow rate, and the power needed to drive the pump.
a crane is lifting concrete to a construction project where the acceleration of gravity is 31 fts2. if a 400 lbm
a stationary gas turbine plant operates on the brayton cycle and delivers 20000 kw to an electric generator. the
One of the obvious purposes of project planning and scheduling is to complete a project on time. Identify other benefits that can be derived from good project planning. Also describe typical problems that can be prevented by good planning and sche..
What is the molar concentration of the complex in a solution that has the absorbance described in (a) when measured at 470 nm in a 2.50-cm cell?
calculate the mold constant B. Then compute the solidification time of a 0.5inch by 8inch by 8inch casting poured under the same conditions?
The pressure gauge on a 2.5-m^3 oxygen tank reads 500 kPa. Determine the amount of oxygen in the tank if the temperature is 28 degrees C and the atmospheric pressure is 97 kPa.
A piston-cylinder device initially contains 0.007m^3 of nitrogen gas at 130kPa and 120C. The nitrogen gas is now expanded polytropically to a state of 100 kPa and 100C. Determine the boundary work done during this process. I know I need to use the fo..
10 kg of superheated water vapor at 200 acircdegc and 1.2 mpa is condensed isobarically to a saturated mixture with a
A fluid is flowing in a pipe, the pressure drop is 12 psi per 1000 ft. We now double the flow rate, keeping other parameters constant. What is the pressure drop if the new Reynolds’ number is a) 10 and b) 108?
Explain the differences between fire-tube boilers and water-tube boilers and discuss the major factors which affect the choice of boiler type for particular applications.
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