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A spring-loaded a toy gun is used to shoot 1 -oz bullets vertically upward. The undeformed length of the spring is 6 in.; it is compressed to a length of 1 in. when the gun is ready to be shot and expands to length os 3 in. as the bullet leaves the gun. A force of 10 lb is requred to maintain the spring in firing position when the length of the spring is 1 in. Determine (a) the velocity of the bullet as it leaves the gun, (b) the maximum height reached by the bullet.
The total hot water flow rate is 10 gal/min which is equally divided among 16 plates. The average temperature of hot water is 80C. Calculate the pressure drop.
calculate the kg mix- ture from the mixer, kg water evaporated, and kg jam produced.
1 kg of air is allowed to expand reversibly in a cylinder behind a piston in such a way that the temperature remains
a 60-kg woman holds a 9-kg package as she stands within an elevator which briefly accelerates upward at a rate of g4.
Steam at 15 bar and 350 degrees C is expanded through a 50% reaction turbine to a pressure of 0.14 bar. The stage efficiency is 80% for each stage and the reheat factor is 1.05.
calculate the maximum permissible crack size in acenter cracked panel subjected to a unifrom stress of 20 ksi. the toughness is 50 ksi"in, the yield stress is 60 ksi, w=12 inches
team at a rate of 5 lbms enters an adiabatic turbine at 800 psia 1000 f and leaves at an actual condition of 10 psia
a thin-walled closed-end cylindrical pressure vessel with spherical end caps is internally pressurized to 500 psi. if
Determine the resultant of the three forces F1 = 2.0i + 3.3j - 2.6k; F2 = - i + 5.2j - 2.9k; and F3 = 8.3i - 6.6j + 5.8k, which are concurrent at the point (2, 2, -5.). The forces are in Newton's and the distances are in meters.
consider an isentropic expansion process in a piston cylinder device where air is expanded from 1mpa and 800 k to 0.1
If the pipe is to be insulated with glass wool insulation (k=.05 W/m C) in order to decrease the temperature rise of water to .25 degrees C, determine the required thickness of the insulation.
the area of a rectangle with a perimeter of 200 cm is modeled by a function a 100l - l2 where l is the length of the
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