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A well-insulated rigid vessel contains 3 kg of saturated liquid water at 40 degrees Celsius. The vessel also contains an electrical resistor that draws 10 amperes when 50 Volts are applied. Determine the final temperature in the vessel after the resistor has been operating for 30 min.
a carnot engine operates between temperatures of 700 and 369 k. to improve the efficiency of the engine it is decided
block c starts from rest at t 0 and moves downward with a constant accelerration of 4 ins2 . knowing that block b has
a refrigerator with a coefficient of performance of 4.0 transfers heat from a cold region at -20 degrees c to a hot a
Describe IN DETAIL how you could determine the required rate of heat addition or removal.
in order to help design a water channel that will be constructed on the moon an experiment is being conducted on earth.
a horizontal cantilever of length l supports a load w uniformly distributed along its length. the cantilever is proped
consider a steam pipe of length l 9 m inner radius r1 5 cm outer radius r2 6 cm and thermal conductivity k 12.5
A metal is being cast into a cylinder which is 10 cm in diameter and 20 cm tall. The mold is bottom-gated (see class notes for geometry)
muddy meadows earthmoving can purchase a bulldozer for 80000. after 7 years of use the bulldozer should have a salvage
consider the function fxx3-2x4 on the interval -22 with h0.25. use the forward backward and centered finite difference
Calculate spring coefficient k = P/δ and discuss the design on how much spring radius r should be changed to increase k two times
Find the safe applied torque that can be transmitted by the shaft ABCD, if the maximum shear stress in the hollow section is 47 MPa and G = 82.5 GPa.
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