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Classify each of the structures shown as completely, partially, or improperly constrained; if completely constrained, further classify as determinate or indeterminate. (All members can act both in tension and in compression.)

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For the beam and loading shown, (a) draw the shear and bending moment diagrams, (b) determine the maximum absolute values of the shear and bending moment.

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A cable of length L + Δ is suspended between two points that are at the same elevation and a distance L apart. (a) Assuming that Δ is small compared to L and that the cable is parabolic, determine the approximate sag in terms of L and Δ. (b) If L = 100 ft and Δ = 4 ft, determine the approximate sag. [Hint: Use only the first two terms of Eq. (7.10).

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Mechanics textbook problem 9.165

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Derive an expression for the magnitude of the couple M required to maintain the equilibrium of the linkage shown.

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A uniform rod AB of length l and weight W is suspended from two cords AC and BC of equal length. Derive an expression for the magnitude of the couple M required to maintain equilibrium of the rod in the position shown.

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A couple M of magnitude 100 N ⋅ m is applied as shown to the crank of the engine system. Knowing that AB 50 mm = and 200 mm, BC= determine the force P required to maintain the equilibrium of the system when (a) 60 , θ= ° (b) 120 . θ= °

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Determine the value of θ corresponding to the equilibrium position of the rod of Problem 10.10 when 30 in., l= 5 in., a= 25 lb, P= and 40 lb. Q=

111 viewsProf. jeremy Answered question 02/12/2024Mechanics vector mechanics

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Determine the value of θ corresponding to the equilibrium position of the mechanism of Prob. 10.14 when P = 270 N and Q = 960 N.

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The forces and couples shown are applied to two screws as a piece of sheet metal is fastened to a block of wood. Reduce the forces and the couples to an equivalent wrench and determine (a) the resultant force R, (b) the pitch of the wrench, (c) the point where the axis of the wrench intersects the xz-plane.

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A telephone cable is clamped at A to the pole AB. Knowing that the tension in the right-hand portion

88 viewsProfessor Matthew Answered question 28/11/2024Homework Mechanics vector mechanics

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A telephone cable is clamped at A to the pole AB. Knowing that the tension in the left-hand

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A trolley that moves along a horizontal beam is acted upon by two forces

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A trolley that moves along a horizontal beam is acted upon by two forces as shown.

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A stake is being pulled out of the ground by means of two ropes as shown. Knowing that α = 30°

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Two structural members B and C are bolted to bracket A. Knowing that both members are in tension and that P = 6 kips

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Two structural members B and C are bolted to bracket A. Knowing that both members are in tension and that P = 10 kN

83 viewsProfessor Matthew Answered question 28/11/2024Assignments Homework Mechanics Trigonometry vector mechanics

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The cable stays AB and AD help support pole AC. Knowing that the tension is 120 lb in AB and 40 lb in AD

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Determine the heat transfer rate for a process where 5000 cfm of air is cooled from 85 F db and 70 F wb to 60 F db

96 viewsProfessor Matthew Answered question 27/11/2024cooling Heating Mechanics Ventilation

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Using the program PSYCH, investigate the effect of elevation on the relative humidity, enthalpy, specific humidity

93 viewsProfessor Matthew Answered question 27/11/2024cooling Heating Homework Math Mathematics

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