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A 50-kg block of iron casting at 500 K is thrown into a large lake that is at a temperature of 285 K. The iron block eventually reaches thermal equilibrium with the lake water. Assuming an average specific heat of 0.45 kJ/kg · K for the iron, determine (a) the entropy change of the iron block, (b) the entropy change of the lake water, and (c) the entropy generated during this process. the iron, determine (a) the entropy change of the iron block, (b) the entropy change of the lake water.
Finding Metal Removal Rate In an electrochemical machining operation, the frontal working area of the electrode is 2.5in squared
Calculate the voltage at the burn out point, if at this point the wire carries a current of 200A.
Calculating the mechanical properties of unidirectionally reinforced composites
At what equivalence ratio for octane-air mixtures does the carbon to oxygen ratio of the system equal one? Why is this of interest?
Steam at a pressure of 0.08 bar and a quality of 93.2% enters a shell-and-tube heat exchanger where it condenses on the outside of tubes through which cooling water flows, exiting as saturated liquid at 0.08 bar. The mass flow rate of the condensing ..
In a hydraulic system comprised of a reservoir and a pump which is 4 ft above the oil level, what would be the pressure at the outlet of the pump, if the frictional effects are neglected and the flow rate is 4 gpm
introductiona trebuchet is weapon developed and used europe in the 12th century. it can also be known as a counter
The internal diameter is 0.75 times the outer diameter. If the yield stress is 300 MPa and a safety factor of 1.5 is required, determine the minimum inner and outer diameters required according to the Maximum Shear Stress theory (Tresca).
the ball at a is kicked such that thetaa 30 degrees. if it strikes the ground at b having coordinates x 15ft y -9ft
The hydrogen spectrum has a red line at 656 nm and a blue line at 434 nm. What is the first order angular separations between these two spectral lines obtained with a diffraction grating that has 4500 lines per centimeter?
a car is moving with a constant speed of 40 kmh along a straight road which heads towards a large vertical wall and
A rocket has an empty weight of 500 lb and carries 300 lb of fuel. If the fuel is burned at the rate of 1.5 lb>s and ejected with a velocity of 4400 ft>s relative to the rocket, determine the maximum speed attained by the rocket starting from rest..
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