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A machine having a mass of 500 kg is to be raised using a wedge, as shown. The coefficient of friction on all surfaces is 0.25. Determine the force P required to raise the machine.
The heat transfer convection coefficient between the wall and the fluid is 500 W/m2.K. Find the maximum temperature in wall.
A vapor compression refrigeration cycle has a theoretical COP of 4.8 and provides 120,000 btu/h of cooling (same as 10 tons of cooling). The compressor is driven by a motor with an efficiency of 92%. Estimate the theoretical kW electrical demand that..
Find the minimum normalized distance at which the second row should be placed behind the first row for no shading at noon solar time at winter solstice. What percentage of the second row is shaded on the same day at 9:00 a.m. solar time?
While completing your homework, imagine the study space you are using employs a space heater with a rating of 30 kW, a refrigerator (for snacks) that is rated for 5 kW, and a light fixture with two 100 W bulbs, all operating at a constant rate for th..
a secondary settling tank is to be designed for a municipal wastewater treatment facility. the influent tss is 1000 mgl
Calculate the manufacturing lead time if the 100 units are run on one machine.
Derive an expression for the force as a function of bar length y if the length and cross section before deformation are yo and αo2 respectively.
the magnesium alloy modulus of elasticity e 44.7 gpa coefficient of thermal expansion 2610-6oc tube ab is capped with
Calculate the fluid horsepower to 2 decimal points for the situation given below. The formula for fluid power from a 100% efficient motor is:
determine the minimum initial velocity at which the ball must be kicked in order for it to just cross over the 3m high
For the wall shown, determine the factors of safety against overturning and sliding and determine the soil pressures under the footing. Use Ka = 0.3 and we = 100 lb/ft3. The coefficient of friction f = 0.50.s
Write a one page paper summery of reading in vibration from 2.4 to 2.8. Base Exitation, Roatatiing Unbalance, Measurement Devices, Other Forms of Damping and Numerical Simulation and Design.
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