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When a dam is installed in a river that has salmon, an alternative path of travel for spawning is critical to the survival of the salmon. It is desired to install a series of observation windows so that the public can watch the salmon "run" through this bypass during the season. The design for observation windows is shown in Fig. 4.58 and the wetted portion of the window will be a rectangle of 10 in by 28 in at the center of the window. Four bolts in the holes shown in the Figure hold the window in place. If the windows are to be installed with their centers at a depth of 3 ft below the surface of the water, determine the force on each of the four bolts.
Make a full-size layout of these gears, and label the beginning and end of contact. Determine and label the angle of approach and recess for the pinion.
Water vapor initially at 3.0 MPa and 300 C is contained within a piston-cylinder assembly. The water is cooled at constant volume until its temperature is 200 C. The water is then condensed isothermally to saturated liquid. For the water as the syste..
An isotropic pressure-dependent yield criterion for polymers, of the form f = A(σ 1 + σ 2 + σ 3) + B[(σ 2 - σ 3)2 + (σ 3 - σ 1)2 + (σ 1 - σ 2)2]1/2 = 1, has been proposed.
determine the maximum value of the coefficient of static friction for which the brake is not self-locking when the drum rotates counterclockwise.
at the instant the cable fails the 180 lb crate is traveling up the plane with a speed of 15 fts. determine the speed
A rigid vessel contains 10 kg of steam. The steam is initially at 10 bar and 300C. After a period of time the pressure in the vessel is reduced to 1 bar due to heat transfer with the surroundings. The surroundings are at a constant temperature of 20C..
Management practices differ, depending on the diversity within the organization. In this assignment, you will research the demographics for your area or city and apply those demographics to business operations.
refrigerant 134a at 140f and 125 psia enters a condenser of a chiller at 800 lbh and exits as a saturated liquid at the
Determine also the weight of the rim of a rim-type steel flywheel of 250 mm mean diameter for the same allowable fluctuation in speed.
A 3 kg piece of steel is removed from an oven at 700C and placed a water bath. The final temperature of the water is 80C and its initial temperature is 20C. The atmospheric temperature and pressure is 25C and 1 atm.
Consider 6.0 kg of austenite containing 0.45 wt% C, cooled to below 727 degrees Celcius (1341 degrees Farenheit).
The final pressure of the system is 20.0 psia. Calculate the amount of heat transferred and indicate its direction.
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