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A bowling ball with a circumference of 27 in. weighs 14 lb and has a radius of gyration of 3.28 in. If the ball is released with a velocity of 20ft/sec. but with no angular velocity as it touches the alley floor, compute the distance traveled by the ball before it begins to roll without slipping. The coefficient of friction between the ball and the floor is 0.20.
Find the magnitude and direction of the force the cable exerts on the pin for the pulleys
KNowing that after being snugly fitted, the nut at C is tightened one full turn, determine (a) the tension in rod CD, (b) the deflection of point C of the rigid member ABC
A steel scuba tank is 24 in. long and has an external diameter of 7.25 in. and an internal diameter of 6.7 5in. Say the tank is to carry a pressure of 3000psi . Determine the hoop stress in the tank wall. Determine the axial stress in the tank wal..
A single stage rocket is fired from a launch pad just in front of the Library. The rocket engines impart a constant acceleration of 20 m/sec/sec for a total time of 40 sec. At that time, there is no more fuel in the rocket engine and the rocket conti..
Derive the expressions for the concentration exiting a CSTR and a PFR for a zero order removal reaction. Which reactor design is more efficient in terms of volume and hydraulic retention times?
Determine the moment capacity, Mu, for a rectangular beam that has b=24in, h=14in, d=11.5in, d’=2.5in, f’c=4ksi, fy=60ksi, As’=2#10, As=3#10 and 2#11 if:
Determine the maximum concentrated load that can be applied at the center of a 6 in. X 6 in. simply-supported plain concrete beam before it cracks in tension.
Groundwater has been contaminated with three chemicals: benzene (log Kow 2.13), pentachlorobenzene (log Kow 5.03), and naphthalene (log Kow 3.36). The aquifer (rs = 2.3 g/cm3; h = 0.4; foc = 0.02)
Your job as a Highway Patrol Officer is to place a sign to ‘Slow Down' on the freeway prior to a major construction site. The posted freeway speed is 65 mph and a speed of 35 mph is required through the construction site.
(a) Compare the crystalline state in metals and polymers. (b) Compare the noncrystalline state as it applies to polymers and ceramic glasses
A 3000-lb car has a maximum speed (at sea level and on a level, paved surface) of 140 mi/h with 16-inch-radius wheels, a gear reduction of 3.5 to 1, and a drivetrain efficiency of 92%. It is known that at the car's top speed the engine is producin..
design a concrete (n = 0.013) channel that will convey 50,000 GPM. It is to be a trapezoidal in cross section with a bottom width of 7.5 feet. The side slopes are to be 1.33:1 (H:V) and it is desired to have the depth of flow constant at 2.0 feet.
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