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1.The uniform 30 kg bar OB is secured to the accelerating frame in the 30 degree position from the horizontal by the hinge at O and roller at A. if the horizontal acceleration of the frame is a equals 20 m/s^2 compute the force Fa on the roller and the x- and y-components of the force supported by the pin at O.
2.Three point loads 10,000, 7500 and 9000 kN act in line 5m apart near the surface of a soil mass. Calculate the vertical stress at a depth of 4m vertically below the centre (7500kN) load.
In a support system in the U.S. space program, a single crucial component works only 85% of the time. In order to enhance the reliability of the system
A valve is now opened and steam at 1Mpa at 473 K is allowed to enter the cylinder until the volume inside increases to 0.04m^3 . Determine the final temperature of the steam and the amount of mass transfer
And forms HCN, it will volatilize, and if it volatilizes, HCN can poison mine workers. At pH 10.4, what fraction of the cyanide is in the CN- form?
A dam has a parabolic shape z/zo = (x/xo)2, with xo = 10 ft and zo = 24 ft. The fluid is water, gamma = 62.4 lbf/ft3, and atmospheric pressure may be omitted.
A large concrete channel holds a hydraulic jump in which the subcritical depth of flow is 2.5 m. If 40 percent of the specific energy in the flow is lost through the hydraulic jump, what is the specific discharge in this rectangular channel?
Properties of frozen tissues have been measured as part of understanding the response of tissue to cryopreservation. In one set of experiments, frozen bovine carotid arteries were tested in uniaxial tension.
A cylindrical tank with inside diameter of 300mm and wall thickness of 5mm is subjected to an internal pressure of 2Mpa. The tensile stress in mpa in the wall of the tank is mostly near
A machine costs $20,000 and has a 5-year useful life. At the end of the 5 years, it can be sold for $4,000. If annual interest is 8%, compounded semiannually, what is the equivalent uniform annual cost of the machine?
If a sample for BOD needs to be diluted by a factor of 0.02 , calculate the volume of sample that will be used in the BOD bottle
A quality characteristic is monitored by a control chart designed so the probability that a certain out-of-control condition will be detected on the first sample following the shift to that state is 1-beta.
If the coefficient of static friction between the man's shoes and the pole is u=0.6, Determine the minimum coefficient of static friction required between the belt and the pole at A in order to support the man.
Many years ago, well-known architect Frank Lloyd Wright designed a mile-high skyscraper, which has never been built.
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