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A solid floating object is composed of a hemisphere and a cone of equal radius r made from the same homogeneous material. If the object floats with the center of the hemisphere above the water surface, find the maximum altitude h which the cone may have before the object will no longer float in the upright position illustrated.
A 3-Litre vessel contains gas at a pressure of 200 kPa. Five litres of gas at the same pressure is forced into the vessel. Calculate the new pressure of the gas. Use V1 = 8L, V2 = 3L
given that the average power plant produces 667 mw of electricity per year there are 492 coal plants in the us and a
A particle which movies in a two-dimensional curvilinear motion has coordinates in millimetres which vary with time t in seconds according to x=5t2 +4 and y=2t3 + 6. For time t =3s, determine the radius of curvature of the particle path and the magni..
Determine whether laminar-to-turbulent transition occurs in the boundary layer of the fuselage. If transition occurs, where does it occur - Estimate the skin friction drag on the aircraft's fuselage.
Water enters one stream of an unmixed stream heat exchanger at 20°C and increases in temperature by 10°C. Air enters the second stream on the heat exchanger at 400°C and 5 kg/s. The air temperature at the exit of the heat exchanger is 200°C cooler th..
The two purposes of amplification for digital systems are (i) to improve signal-to-noise ratio and (ii) to make good use of the dynamic range of the digitizer; in other words, to ensure the best resolution possible.
the waveform from a mechanical vibration is sensed by a velocity-sensitive vibrometer. the oscilloscope trace indicates
1. calculate the velocity at the exit of a diffuser when air at 100kpa and 20oc enters it with a velocity of 500ms and
During an expansion process, the pressure of a gas changes from 15 to 100 psia according to the relation P = aV + b, where a = 5 psia/ft3 and b is a constant. If the initial volume of the gas is 7 ft3, calculate the work done during the process.
a solo motor cycle ride and passenger together have a mass of 320 kg the combined centre of gravity being 525mm above
Neglect any friction and determine the torque M on the worm shaft required to generate a compressive force C in the press for the position
The nominal breaking strength of the rope is 10,000 lbs. Calculate how much payload this assembly can allowably pick up. Show your work.
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