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The rigid gate, OAB, of Fig. P2.58 is hinged at O and rests against a rigid support at B. What minimum horizontal force, P, is required to hold the gate closed if its width is 3 m? Neglect the weight of the gate and friction in the hinge. The back of the gate is exposed to the atmosphere.
A large tower is to be supported by a series of steel wires; it is estimated that the load on each wire will be 13,300 N (3000 lbf). Determine the minimum required wire diameter, assuming a factor of safety of 2 and a yield strength of 860 MPa (12..
The temperature of the water drops to 260 F as a result of heat transfer to the surroundings. Determine the final pressure in the tank?
two kilograms of air within a piston-cylinder assembly executes a carnot power cycle with maximum and minimum
Calculate the angular separation between the first order minima on either side of the central maxima when the slit has a width of 6x10-4 cm & light illuminating it has a wavelength of 6000A0?
A hot upsetting of stainless steel 316/316L, 2000mm dia disc, 200mm thickness is upset at 1200 degree Celsius to 150mm thickness. what will be the Upsetting force required to forge this disc and what will be the yield stress at this temperature.
Derive at least four concept designs to satisfy the given specification. Use short written descriptions and simple sketches to illustrate your ideas
determine the expressions for attractive and repulsive energies, EA and ER as a functions of r where r is in nm and E is in eV.
a molten mixture of salt nano3-kno3 is used as the heat transfer fluid for application in a parabolic trough solar
Calculating Test Mach Number, The temperature in a reservoir of a supersonic tunnel is 519 deg.R. In the test section, the flow velocity is 1385 ft/s.
Plot the spectral blackbody emissive power of the sun versus wavelength in the range of 0.01 micro m to 1000 micro m?
What is the work you get out of each kJ of heat extracted from the basin? Repeat for the case that the water is at 100C. Comment on why efficient car engines run so hot.
A small steel ball bearing with a mass of 13 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.35 m. Calculate the speed at which the ball leaves the spring.
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