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The MIT varsity diving team is practicing their back flips on the Z-center's diving boards.The diving boards have a total length of 3 m, width of 0.5 m, and thickness of 0.1 m. The core of the boards is made of a Douglas fir wood with an estimated Young's modulus E of 0.6GN/m2. Let us approximate the diving board as a clamped-free beam, neglecting the springboard support at the midspan of the diving board and the weight of the diving board
The board is used to hold the end of a four-way lug wrench in position. A torque of 40 N.m about the x-axis is required to tighten the nut. You decided to step at the end of the wrench in order to turn it. Assume that the force provided by your foot ..
a 6.5m tall tank has a rectangular cross?section and is filled with water to a depth of 3.5m. assuming the pressure on
a high rise office building located in a city at sea level is exposed to a wind of 75 kmh. what is the static pressure
water at 4oc is to be delivered to the top of a ski area for snowmaking purposes. the water is to be drawn from a
a vertical shaft whose cross sectional area is 0.8 cm2 is attached to the top of the piston. determine the magnitude f
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?
Steels and low carbon iron alloys are by far the most common metals in industrial use. The main element of these materials is iron (Fe). Fe has a BCC crystal structure. Show for Fe the unit cell edge length a and the atomic radius R are related throu..
a helical compression spring with squared and ground ends is required to exert a maximum working force of 1000 n and a
a cylindrical wheel billet 1ft. in diameter and 3ft. long initially at 1000 f is quenched in oil. assume that the
a turbine produces 2 mw of power while accepting steam at 3 mpa and 400 c and rejecting steam at 50 kpa and 100c. find
Determine the molecular weight of a poly(ethylene-propylene) with a degree of polymerization of 25,000 given that 20% of the mers (by number) are ethylene and 80% are propylenel.
a turbine takes in 2 kgs neon at 27 degc and 200kpa with negligible velocity. the produced work is 75 kw and 30 kw of
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