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A 125lb bowling ball is suspended from point C with rope CE. A second rope (ABC) is tied to point C and wraps around pulley B toward point A. Spring CD is used to hold the position shown. Determine the stretched length of CD if the spring coefficient is 200lbs/ft and the unstretched length is 2.6 feet. ABC is independent of rope CE. Use statics to solve.
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.
A sightseeing tourist submarine is constructed. The portals along the side can be assumed to be essentially flat, vertical and 1 meter in diameter. Assume a specific weight of seawater of 10,000 N/m3.
John had a little business on the side and did not have a girlfriend when he was at school and ehnce he was able to save the $10,000 for his dream car. The dealer agrees to take the car back for $8000
At the end of 15 years, the first motor will have a salvage value of $50 and the second motor will have a salvage value of $100. consider the MARR to be 8%. (note : 1HP=0.7457 kw). Determine which motor should be installed based on the PW criterio..
The water table is at a depth of 1 m. Compute the effective normal stress and the shear stress acting on a plane rotated 60 degrees clockwise from the horizontal at a depth of 2.5 m in this deposit.
a paved parking lot section has a uniform slope over a length of 100 m in the flow direction from the point of a
A steel shaft with a diameter of 40mm and length of 1.1m transmits 60hp from an electric motor to a compressor. If the allowable shear stress is 50MPa and the allowable angle of twist is 1.5 degrees
If the clearance is not adequate in this type of case what modification to L would be required to increase the clearance? Discuss possible ramifications of making this modification. (Do not need to do any calculations in part c).
A water pipe gradually changes from 6 in to 8 in diameter accompanied by an increase in elevation of 10 f t. If the pressure at the 6 in and 8 in sections are 9 psi and 6 psi respectively, what is the direction of flow for 3 cfs flow
In a second block, you drill a single larger-diameter hole, so that the porosity is the same as your first block. What is the diameter of the hole? What is the permeability of the second block?
A parking facility on a campus was recently opened to faculty,staff and students.It cost a total of $ 300,000 to construct the facility. It is expected that thefacility will require no maintenance for the first 2 years ofoperation.At end of year 3, t..
An aluminum tube AB is rigidly connected to a steel shaft BC at B. Determine the angle of twist at B and the maximum shear stress in both materials due to the torque applied at B.
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