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A solid steel shaft with an outside diameter of 65 mm is subjected to a pure torque of 7,000 N-m. The shear modulus of the steel is G=80 GPa.Determinea. 1 The maximum shear stress in the shaftb. 2 The magnitude of the angle of twist in a 2.5-m length of shaft.c. 3 If the shaft is hollow, what are the outside diameter and the thickness of the shaft to have the same maximum shear stress ?d. 4 Discuss the result from part c.
A civil engineering student contends that 60 mph is safe in a van because of the higher drivers line of site. If all other design inputs are standard, what must the drivers eye height be in the van for the students claim to be valid
Materials To Construct An Industrial Building, A small building can be constructed of steel or wood framing. A decision is made to use steel for fire resistance.
A four-lane freeway (two lanes in each direction) is on mountainous terrain with 11ft lanes, a 5ft right-side shoulder, interchange spacing of one every 10 miles, and a 60mph base free-flow speed.
The oven exhaust gases are available at 250 F. Assume that the design temperature and residence time have been established as 1300 F and 0.6 sec, respectively. The type of burner used in the process requires outside air at a moass ratio of 12:1
a horizontal cylindrical tank 4 ft in diameter and 10 ft long is full of water. find the work done in pumping the water to a point 4 above the top of the tank.
Determine the normal stress in a soccer ball if the internal pressure is 110 kPa, the outside diameter is 220mm and the wall thickness is 3mm .
Find the steel area required for beam which has b = 10 in. and d = 17.5 in. to carry a factored load moment of 1,600 in-kips.
A slurry containing 20 percent by weight of limestone (CaCO 3 ) is processes to separate pure dry limestone from water. If feed rate is 2000kg/h, how much CaCO 3 is produced per hour?
Suppose 500 people are approched outside of a grocery store to answer some survey questions. If each person decides independently whether or not to participate, and each has a probability of 0.1 of participating
Determine the air pressure at the top of a 300 m high building by assuming the density of air stays constant at the z = 0 value. Now compute the pressure assuming the density of the air varies. Is there a significant difference.
A HEPA (high efficiency particulate air) filter is monitored periodically for replacement. Specifications state that if the pressure drop across the filter exceeds 1 inch of water, the filter should be replaced.
determine the total dead load, per foot of length, each beam must support.
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