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The four-bar linkage of Prob. 5/88 is repeated here. If the angular velocity and angular acceleration of drive link OA are 10 rad/s and 5 rad/s2 respectively, both counterclockwise, determine the angular accelerations of bars AB and BC for the instant represented.
Design a simply supported one-way reinforced concrete floor slab to span 10 ft and carry a service live load of 175 psf and a service dead load of 25 psf. Use fc' = 3000 psi and fy = 60,000 psi.
A model of a high-rise offiice building at 1/500 scale is tested in a wind tunnel to estimate the pressures and forces on the full-scale structure. The wind-tunnel air speed is 20 m/s at (20 degrees C) and atmospheric pressure.
A 5 cm diameter, 6 m high pole is fixed in concrete. The pole supports a circular 4 m diameter sign. Estimate the maximum moment that must be resisted by the concrete for a wind speed of 30 m/s (wind is assumed normal to the sign; density of air = 1...
Determine the normal depth and critical depth in a trapezoidal channel with a bottom width of 12.5 m, side slopes of 2:1, and a bed slope of 0.003 m/m.
A manometer is used to measure the pressure difference between points A and B in a pipe. Water flows in the pipe, and the specific gravity of the manometer fluid is 2.8. The distances and manometer deflection are indicated.
A valueable preserved biological specimen is weighed by suspeding it from a spring scale. it weighs 0.45 N when it is suspendedin air and 0.081 N when it is suspended in a bottle of alchol what is its dencity?
A pipeline 900 ft long discharges freely at a point 200 ft lower than the water surface at intake. The pipe intake projects into the reservoir. The first 600 ft is of 10-in diameter, and the remaining 300 ft is of 6-in diameter.
State the number of grams of AgNO3 produced be the reaction of 324 grams Ag with 126 grams of HNO3
A gunite concrete trapezoidal channel with 1:2 side slopes, as ilustrated below, conveys 60 m3/s on a slope of 0.0005. Compute the depth of flow.
A composite price index for the cost of vegetarian foods called eggs, artichokes, and tofu (EAT) was 330 ten years ago and has averaged an annual increase of 12% since. Calculate the current value of the index.
An elevator weigh 4000kg. When the upward tension in the supporting cable is 48000N what is the upward acceleration Starting from rest, how far does it rise in 3s
Determine the payback period for an asset that has a first cost of $40,000, a salvage value of $8000 anytime within 10 years of its purchase, and generates income of $6000 per year.
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