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The rigid rotor of Fig. 10.28 shown with three masses is to be balanced by the addition of a fourth mass. Determine the required weight and angular position of the balancing mass, which is to be located at r4 = 10 in. Show answers on a scale drawing of the rotor.
Is it possible to have a copper–silver alloy that, at equilibrium, consists of a \beta phase of composition 92 wt% Ag–8 wt% Cu and also a liquid phase of composition 76 wt% Ag–24 wt% Cu? If so, what will be the approximate temperature of the alloy? I..
an air conditioner can produce a 120 kjmin cooling effect while rejecting 2.5kw of heat. what is its cop and the
A steam power plant operates between the pressure limits of 4.5MPa and 15kPa. Steam enters the pump as saturated liquid and leaves the turbine as saturated vapor. Determine the ratio of the work delivered by the turbine to the work consumed by the pu..
1. What are the factors considered while selecting a boiler? 2. What are the various boiler mountings? 3. Define vacuum efficiency of condenser? 4. What is the effect of friction on the flow through a steam nozzle?
The drive shaft to a boat's propeller is 50 mm in diameter. If a 25 mm diameter hole is bored along its length calculate the percentage saving in weight and the percentage reduction in torsional streng
Using the defined "bins" on the spreadsheet. Create a histogram that shows how many values are in each group
An ideal duct carries water (incompressible fluid) from a height of 10m to 20m. The pressures at the entry and exit points are at 1000 Pa and 2000 Pa respectively. Calculate exit velocity if the velocity at entry is 10 m/s.
steam flows through a small steam turbine at the rate of 10000 kgh entering at 600oc and 2.0 mpa and emerging at 0.01
a robot unloads a finished component from a machine and places it on a gravity conveyor. the conveyor accelerates from
water at a rate of 45500 kghr is heated from 80 c to 150c in a shell-and-tube heat exchanger haveing two passes and
The ball is kicked from point A with the initial velocity vA=10m/s. Determine the range R, and the speed when the ball strikes the ground
the inside dimensions of a refrigerated box is 2m x 1 m x 1.2 m. it is covered with insulation 50 mm thick and then a
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