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The jib crane supports a load of 750 lb from the trolley which rides on the top of the jib. The members of the crane are pinned together at B, E, and F and supported by a short link BH.
Determine the internal shear force and moment in the jib at point D when the trolley is at the position.
Determine the internal axial force at point D when the trolley is at the position.
A worker needs to enter a confined space to tighten the packing on a leaking argon valve. Describe two procedures that could be used to isolate the argon line and valve prior to starting work.
A 10cm diameter vertical tank holds 20cm of water topped with 15cm of ethyl alcohol. The cylinder is rotated about its central axis at a rotation rate of 20 rad/s. (a) What will be the shape of the air-alcohol and alcohol-water interfaces
A 0.3-m diameter pipeline terminates in a nozzle of outlet diameter = 0.15 m. When water flows through this pipe at a rate of 0.25 m3/s, the force required to hold the pipe (N) is most nearly.
What is the velocity head expressed in atmospheres for a rapid filter operated at a surface loading rate of 475 m/d when the local porosity is 0.40?
Water flows through a horizotal 45 deg reducing bend with a 36 inch. diameter upstream and a 24 inch diameter downstream, at the rate of 20 cfs under a pressure of 15 psi at the upstream end of the bend. Neglecting head loss in the bend, calculate..
A company that manufactures regenerative thermal oxidizers made an investment 10 years ago that is now worth $1,300,000.
The 75 lb block is released from rest 5 ft above the plate. Determine the compression of each spring when the block momentarily comes to rest after striking the plate.
The forces F1, F2, and F3, all of which act on point A of the bracket, arespecified in three different ways. Determine the x and y scalar components of each of the three forces.
A 3-mm thick panel (1 m x 1 m) of aluminum alloy (k = 177 W/m. K, Cp = 875 J/kg. K, and p(rho)= 2770 kg/m3) is heated in a large oven with air at T = 175oC and a convective heat transfer coefficient of h = 40 W/m2.K.
Include immediate and consolidation settlements, but ignore secondary compression. In your calculation, use three sublayers with thicknesses of 4 ft, 8 ft and 16 ft for the top, middle and bottom layers. Ignore any settlement caused by the dense s..
Blood is flowing through an aorta of 1.0 cm diameter at an average velocity of 50 cm/s. The mean pressure is 100 mm Hg, The blood enters a stenosis where the aortic diameter is 0.5 cm. What is the appropriate pressure at the point of maximum steno..
a 1 meter diameter cylindrical mass is connected to a 2 meter wide rectangular gate. the gate is to open when the water level drops below 2.5 meters. Determine the required value of the mass of the cylinder in kgs.
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