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An old wooden telephone pole with a single cross member was blown off center during a recent storm. To temporarily stabilize the telephone pole, a repair crew has attached a cable from the end of the cross member to an eye-ring stake anchored in the ground. (Part C figure) If the origin O of a coordinate system is placed where the pole meets the ground, the point where the cross member is attached to the pole is A(-1.50,1.90,24.8)ft and the point where the cable is attached to the end of the cross member is B(-1.50,-3.10,27.8)ft. The cable's direction is {1.00{i}-1.00{j}-1.00{k}} and it has a tension of 185lb. What is M_a, the moment that tends to twist the telephone pole due to the tension in the cable applied at point B?
A flow of 90 cfs is carried in a rectangular channel 10ft wide at a depth of 1.6 ft. If the channel is made of smooth concrete (n=0.016), find the slope necessary to sustain a uniform flow at this depth.
A plant is to be constructed that will emit 3.5 metric tons of hydrogen sulfide per day. One of the design criteria is that the concentration 1 km downwind from the stack must not exceed 120 micrograms/m3.
a concrete dam retaining water has a specific weight of concrete of 23.5kn/m3, what is the factor of safety against sliding & overturning and pressure intensity on the base if coefficient of friction is 0.45.
Design a single angle strut connected to a gusset plate to carry 180k n factored load. The length of the strut between center to center intersection is 3m.
Calculate the equilibrium concentration of dissolved oxygen in 15ºC water at 1atm and again at 2,000m elevation.
Two immiscible fluids are in contact. Fluid I is denser and is also well mixed. The concentration of species a is cao everywhere within this fluid and the temperature in fluid I is held constant at To.
consider the diffusion of water vapor through a polypropylene (PP) sheet 2mm thick. the pressure of H2O at the two faces are 1 kPa and 10kPa, which are maintained constant.
Create 3 user defined functions to use in the script. function "flip" simulates the flip of one coin with the state "s" of the random number generator as the input argument, and the nes state "s" and the result of the flip (0 for a tail and 1 for ..
The central conductor and the conducting tube carry equal currents of I = 1.05A in opposite directions. The currents are distributed uniformly over the cross sections of each conductor. What is the value of the magnetic field at a distance r = 5.4..
Steel design problem A w14X74 of A992 Steel has a length of 20 feet and fixed ends. Compute the design compressive strength for LRFD and the allowable compressive strength for ASD. please give solution step by step
The end caps are spherical. The cylinder has length of 30 inc., a diameter of 8 in., and a wall thickness of 0.125 in. Determine the stress in the wall at two points A and B. For each, draw the stresses on a 3-D element.
A three-point bending test is performed on a glass specimen having a rectangular cross section of height d=5mm and width b=10mm; the distance between support points is 45mm.
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