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A power plant burns 1000 kg of coal per hour to produce a net output of 500 kW of electrical power. Assuming each kg of coal produces 6 MJ of energy determine: The rate of heat rejection to the sink. The overall thermal efficiency of the power plant. A heat engine accepts 700 kJ of heat from a thermal source and rejects 250 kJ of that heat to a thermal sink. What is the work output of the heat engine? What is its thermal efficiency?
Determine maximum total bending moment (static plus dynamic) of the beam under steady-state conditions.
Using the knon height and calculated base lenghth, what is the length of the slope of the ramp.
A spherical balloon inflated sos that the volume is increasing at the rate of cubic meter/min. At what rate is the diameter increasing when the diameter is 12 m?
a hunter aims directly at a target 140 meter away. if the bullet leaves the gun ay a speed of 280 m/s, by how much will the bullets miss the target?
Roll out a sheet of blu-tack, punch out a disk with your specified radius, assemble a flywheel for testing on an electric drill and determine the approximate critical rotation speed in rpm - SEM212 T1 2014
Describe how you would implement it using an open-loop system
consider an ideal steam cycle that combines the reheat cycle and the generative cycle. the net power output of the
a laser is directed at a double-slit arrangement. if we increase the wavelength of the light which of the following
A 1300 car is traveling along a straight road at 18 . Two seconds later its speed is 21. What is the magnitude of the net force acting on the car during this time?
an engine operates on an air-standard brayton cycle with reheat. the work required to compress the air in one stage
A long electric wire of radius r0 generates heat at rate of q'''. The surface is maintained at uniform temp of T0. Write heat equation and boundary conditions for steady state one dimensional conduction.
water at 10degc is pumped from a lake through a pipe to an elevation of 25 m above the lake surface. the pipe is 650 m
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