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A work platform is elevated on the end of a boom that has the ability to extend its length and vary its angle with respect to the ground. The platform width is large compared to the boom diameter so that it is possible to load the boom eccentrically resulting in a combination of bending, torsion and direct compression in the base of the boom. At the base the boom is a hollow tube with an outside diameter of 8 inches and a wall thickness of 0.75 inch. It is made from SAE 1030 CR steel. Determine the factor of safety against static failure if the loading at a point at the base of the boom is M=600,000 in-lb. and T=76,000 in-lb., and there is an axial compression of 4800 lb.
a freezer is 1 m wide and deep and 2 m high and must operate at -10 degree c when the ambient air is at 30degree c.
package is dropped from the plane which is flying with a constant horizontal velocity of vA = 150 ft/s at a height h = 1500 ft. Determine the radius of curvature of the path of the package just after it is released from plane at A.
a stationary gas turbine engine is used for generating electricity during times of peak demand. dry air at tamb 20oc
an adiabatic gas turbine expands air at 1300 kpa and 500oc to 100 kpa and 127oc. air enters the turbine through a
a rigid vessel contains 10 kg of steam. the steam is initially at 10 bar and 300degc. after a period of time the
a power plant burns gas with hhv of 55000 kjkg to generate electricity of 10 mw. if the overall efficiency is 40 how
air is used as the working fluid in a simple ideal brayton cycle that has a pressure ratio of 10 a compressor inlet
pneumatic nail gun uses .02 ft3 of air at least 100 psia and 1 btu of energy per nail tank used must supply enough air
consider the ocean thermal energy conversion system given in the lecture notes. also take into consideration that 30 of
a big fireplace can be approximated as 1.5 m3 of volume. its made of firebrick with properties ? 2600 kgm3 and c 950
a piston-cylinder containing 1 kg air at 500degc and 500 kpa is connected to a carnot heat engine where the environment
Determine the reactions of simply supported beam to both a concentrated and uniform load. A beam with a span of 21 ft is simply supported at the left-hand end and fixed at the right-hand end.
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