Q: Cable DB supports canopy beam OABC as shown in the figure.
Cable DB supports canopy beam OABC as shown in the figure. Find the required cross-sectional area of cable BD if the allowable normal stress is 125Â MPa. Determine the required diameter of...
See AnswerQ: A shock mount constructed as shown in the figure is used to
A shock mount constructed as shown in the figure is used to support a delicate instrument. The mount consists of an outer steel tube with inside diameter b, a central steel bar of diameter d that supp...
See AnswerQ: A removable sign post on a hurricane evacuation route (see figure
A removable sign post on a hurricane evacuation route (see figure part a) consists of an upper pole with a slotted base plate bolted to a short post anchored in the ground. The lower post is capped wi...
See AnswerQ: A spray nozzle for a garden hose requires a force F =
A spray nozzle for a garden hose requires a force F = 5 lb to open the spring-loaded spray chamber AB. The nozzle hand grip pivots about a pin through a flange at O. Each of the two flanges has a thic...
See AnswerQ: A single steel strut AB with a diameter ds = 8mm supports
A single steel strut AB with a diameter ds = 8mm supports the vehicle engine hood of a mass 20 kg that pivots about hinges at C and D (see figure parts a and b). The strut is bent into a loop at its e...
See AnswerQ: The top portion of a pole saw used to trim small branches
The top portion of a pole saw used to trim small branches from trees is shown in the figure part a. The cutting blade BCD (see figure parts a and c) applies a force P at point D. Ignore th...
See AnswerQ: A cargo ship is tied down to marine bollards at a number
A cargo ship is tied down to marine bollards at a number of points along its length while its cargo is unloaded by a container handling crane. Each bollard is fastened to the wharf using anchor bolts....
See AnswerQ: A basketball player hangs on the rim after a dunk. He
A basketball player hangs on the rim after a dunk. He applies equal forces P1 = P2 = 110 lb at both A and B (see joint coordinates in the figure). Forces P1Â and P2 act parallel to the y-z...
See AnswerQ: A bicycle chain consists of a series of small links, where
A bicycle chain consists of a series of small links, where each are 12 mm long between the centers of the pins (see figure). You might wish to examine a bicycle chain and observe its construction. Not...
See AnswerQ: A high-strength steel bar used in a large crane has
A high-strength steel bar used in a large crane has a diameter d = 2.00 in. (see figure). The steel has a modulus of elasticity E = 29 × 106 psi and Poisson’s ratio is n...
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