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A rotating disc of mass 25 kg and radius 150 mm is accelerated from 500 to 3000 rpm in a time of 25 s. If there is a constant friction torque of 5 Nm, determine (a) the applied torque, (b) the work done, (c) the maximum power developed.
estimate the annual emissions of co2 and so2 from a 1500 mwth steam generation plant if the boiler operates at 1800 k
a block having a mass of 0.8 kg is suspended from a spring having a stiffness of 120 nm. if the dashpot provides a
silicon carbide sic has a specific gravity of 3.1 gcm3. a sintered sic part is produced occupying a volume of 500 cm3
The motor operates 4368 hours a year at a load factor of 0.75. Taking the cost of electricity to be $0.08/kWh, determine the amount of energy and money saved as a result of installing the high-efficiency motor instead of the standard motor. Also, ..
A mixture of H2O 67.5% liquid and 32.5% vapor is in a closed, rigid container at 4 bar. The water is heated to 400 oC, determine the work and heat transfer, in kJ
a house that was heated by electric resistance heaters consumed 1200 kwh of electric energy in a winter month. if this
a 4-in. diameter disk shown weighs 10 lb. the disk is released at rest when theta30 degrees and rolls down the curved
a pot containing 1.0 liters of water at 20 degc is placed on the stove and heat is added to the water at a rate of 500
the frictionless piston has a mass of 16 kg. heat added until the temperature reaches 400 celcius if the initial x is
a steam power plant operates on an ideal regenerative rankine cycle with two open feedwater heaters. steam enters the
The open-ended polyvinyl chloride pipe has an inner diameter of 4 in. and thickness of 0.2 in. It carries flowing water at 57psi pressure. If the flow of water within the pipe is stopped due to the closing of a valve, determine the state of stress in..
Determine the mode shapes and frequencies of vibration of the system of cars by Sweeping the rigid body mode
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