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Two identical rollers,each of weight 90N are supported by an inclined plane and a vertical wall as shown in fig., determine the reaction at the points of supports A,B,C assuming all the surfaces to be smooth. Also find the reaction forces between the spheres
The receiver's velocity is constant at 10 yd/sec, and he catches passes when the ball is 6 ft. above the ground. If the quarterback desires the receiver to catch the ball 2.5 sec. after the launch instant, determine the initial speed v0 and angle,..
A 1:40 scale model of a ship is tested in a towing tank. Prototype operates in seawater at 60 F. Find a liquid to be used in the towing tank that allows both Froude and Reynolds scaling for the model and the prototype.
(a) Calculate the annual costs ($/yr) of meeting the proposed effluent requirement of 0.1 mg P/L using alum to precipitate AlPO4(s). Assume the chemical formula for alum is Al2(SO4)3·18H2O (MW = 666).
In Fig, the hydrostatic force F is the same on the bottom of all three containers, even though the weights of liquid above are quite different. The three bottom shapes and the fluids are the same. This is called the hydrostatic paradox. Explain wh..
A subsurface detention basin is installed beneath a street to help prevent flooding. Water from the rain is chanelled into the basin and begins to infiltrate into the ground when it reaches 1ft.
The force of the expanding gases on a 0.02 kg bullet is given by f=f0-f.1*t . Initially stationary at x=0 , the bullet reaches a speed of 1000 kph by the time it exits the gun. f0 = 7000 N and f1=2.9*106 N/s.
From a videotape, it was observed that a player kicked a football 126 {\rm ft} during a measured time of 3 seconds. Determine the initial speed of the ball and the angle(theta) at which it was kicked
If you deposit $1000 per month into an investment account that pays interest at a rate of 6% per year, compounded quarterly, how much will be in the account at the end of 5 years? There is no interperiod compounding.
Other than measurement, for which it might be poor, what could be the engineering reason for such a weir?
A flow of 0.1 cum/s flows down in a rectangular channel of width of 0.6m and having and adjustable bottom slope. If chezys constant C is 56, determine the bottom slope necessary for uniform flow with a depth of flow 0.3m. Also find the conveyance of ..
Explain CBR method of pavement design with one example.
Determine the largest stresses in the vertical post AB due to the wind pressure, and draw Mohr's circle for that stress state.
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