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An open-ended mixing drum is a thin cylinder of length 1.3 m, diameter 600 mm and wall thickness 5 mm. The drum is made from steel of density 7800 kg m 3 . A driving torque of 55 Nm accelerates the drum uniformly from rest to a speed of 3600 rpm against a friction torque of 5 Nm. Determine (a) the moment of inertia of the drum, (b) the angular acceleration, (c) the time taken, (d) the work done, (e) the average power developed by the driving motor.
Determine the total induction length, from the point of intake entry of the tract to the head of the inlet valve, to optimize the wave ram effect at the following engine speeds:
Sectional view of a length of pipeveork which fuel oil flows through. Justify and comment on the pipe design, in particular section 1, 2 and 3 using fluid dynamic theory
The role of IFRS in both developing and developed capital markets.
a reactor setpoint wasincreased from 160 psig to 190 psig. the reactor pressure transmitter was recalibrated from 0-200 psig to 0-300 psig. what is the percent span for the old and new setpoints?
A spherical container of outer diameter 2.5 m is buried below the wrath’s surface. The distance of the center of the container to the earth surface is 10 m. The container issued to temporarily store radioactive wastes where heat is generated at a rat..
A thin-walled concentric tube heat exchanger is used to cool engine oil from 175 °C to 55 °C with water that is available at 27 °C acting as a coolant. The oil and water flow rates are each 2.5 kg/s and the diameter of the inner tube is 0.7 m with a ..
a w16 x 50 steel beam supports a uniform load and a concentrated load. the distributed load is 1.5 kipft and
If heat engines efficiency can be increased by increasing the highest temperature why do we not increase the temperature further for our power plants? What could be done still to raise the temperature of the high temperature reservoir? What could be ..
Assuming the volume of the tire remains constant at 0.035 m3, determine the percent increase in the absolute temperature of the air in the tire.
Methane gas is compressed at the rate of 3x104 m3/hr (as measured at 0.1013 MPa and 15C) from 0.69 MPa and 26.7C to 3.45 MPa. The compressor operates adiabatically and has an efficiency of 80%. After compression, the methane is colled at a constant p..
nitrogen n2 initially occupying 0.1 m3 at 6 bar 2478c undergoes an internally reversible expansion during which pv 1.20
1. determine the amount of excavation needed for the basement. a 2 foot working distance is required and the
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