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One end of the torsion spring is secured to the ground at A, and the other end is fastened to the shaft at B. The torsional stiffness K of the elastic spring is the torque required to twist the spring through an angle of one radian.
The spring resists the moment about the shaft axis caused by the tension mg in the cable wrapped around the drum of radius r.
Determine the equilibrium value of h measured from the dashed position, where the spring is untwisted.
If there is a preexisting surface crack of a = 4 mm, at what stress will the structural member fail? Will it fail by yielding or fracture?
Determine the pressure differential for flow rate - If the volumetric flow rate of n-heptane is determined to be 12 gal/sec determine:
an electric water heater having 0.2 m3 capacity employs an electric heater to warm the water from 22degc to 55degc. the
According to the Hall-Petch equation, Ostwald ripening follows the empirical rule. The recrystallization temperature of brass is higher than the recrystallization temperature of copper. The recrystallization temperature of bronze is lower than the re..
Determine the stress that would result in a 1in schedule 40 steel pipe if a plumber applies a force of 70lb at the end of a wrench handle that is 16in long. What is the equation for torque? What is the value of T in this problem? Include units. What ..
a tank contains 1 kg of carbon dioxide at 6 mpa 60 degrees celsius and it is connected to a turbine with an exhaust at
an internal combustion engine with clearance volume of 60 cm3 and compression ratio of 8.5 is modeled using the
derive the scaling relation for the strain energy release rate of crack extension under fixed displacement. clearly
a fan at a rock concert is 27 m from the stage where the sound intensity level is 130 db. her eardrums have a diameter
a cylinder containing 0.9 kg of ammonia has an externally loaded piston. initially the ammonia is at 2 mpa 180degc and
water is supplied steadily at 150 ft2s to a hydraulic turbine through a 3ft diamter inlet pipe and discharged through a
find a unique four-bar mechanism one that was not mentioned in class like the vise grips. sketch the mechanism and
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