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The figure shows the design in section of a loaded bracket which is supported on the fixed shaft by the roller at B and by friction at the corner A. The coefficient of static friction is 0.40. Neglect the weight of the bracket and show that the bracket as designed will remain in place. Find the friction force F.
steam at 1 bar enters an adiabatic heat exchanger with a quality of 0.896 and exits as a saturated liquid. the steam is
the thermal conductivity of an insulating material is found by casting a 0.1 m thick shell of the insulating material
A square 3m x 3m gate is located in the 45* sloping side of a dam. Some measurements indicate that the resultant force of the water on the gate is 500kN.(a)Determine the preassure at the bottom of the gate.(b)Show on a sketch where this force acts..
a projectile is fired at t 0 with an initial velocity of vi at an angle of ? with respect to the horizontal towards
a solar-thermal-electric power plant collects energy from sunlight focused on a high-temperature collector where solar
in a spring mass system a 1kg block is dropped from a height of 1 meter on top of a spring with a spring constant k
Calculate the velocity of a satellite in orbit around the earth in a geosynchronous orbit. Use the definition of a sidereal day which is 86164.09 sec. What is the orbit height in km?
The rigid gate, is hinged at O and rests against a rigid support at B. What minimum horizontal force, P, is required to hold the gate closed if its width is 3.9 m? Neglect the weight of the gate and friction in the hinge. The back of the gate is e..
determine the energy loss that will occur if water flows with a velocity of 7fts through a gate vlave fully open. what
The pressure gauge on a 2.5-m^3 oxygen tank reads 500 kPa. Determine the amount of oxygen in the tank if the temperature is 28 degrees C and the atmospheric pressure is 97 kPa.
Assuming that the coefficient of friction in cutting is 0.25 for turning a hard aluminium alloy on a 20 hp lathe (mechanical efficiency = 90%) with a width of cut of 0.24 in, a rake angle of 11°, and a cutting speed of 333 ft/min. Assume the cut is a..
A home has a total of 7.5 KW of lighting and the lights stay on 2/3 of the time. If electricity is priced at 12 cents/KWh, then how much money could be saved annually with a 25% reduction in use?
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