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1. A 22 in. by 34 in. speed limit sign is supported on a 3-in.-wide, 5-ft-long pole. Estimate the bending moment in the pole at ground level when a 30-mph wind blows against the sign. (See Video V9.14.) List any assumptions used in your calculations.
2. Determine the moment needed at the base of a 20-mtall, 0.12-m-diameter flag pole to keep it in place in a 20-m/s wind.
a rigid 2-ft3 vessel contains water originally at 150of and 5.07 percent quality. the water is then heated until its
a particulate control device has an efficiency which is a function of particle size as follows eff dp 11 d50 dp 2
A constant force of F is applied to a block of weight w located on an inclined surface with angle of and friction coefficient u. A spring is acting on the block with constant K. if initially spring was compressed by distance d. Find velocity of block..
a piston-cylinder containing 1 kg air at 500degc and 500 kpa is connected to a carnot heat engine where the environment
A vapor-compression refrigeration system, using ammonia as the working fluid, has evaporator and condenser pressures of 30 and 200 lbf/in.2, respectively. The refrigerant passes through each heat exchanger with a negligible pressure drop.
three kg of water in a piston-cylinder apparatus is initially in the saturated liquid state at 0.6 mpa. energy is added
a trailer truck enters a 2 percent uphill grade traveling at 72 kmh and reaches a speed of 108 kmh in 300 m. the cab
a 3 m x 3 m x 2.4 m room losses heat through the walls at a rate of 520 w. determine the final temperature of the room
air at 20 kpa and 20 degc flows across a flat plate 60 cm long. the free stream velocity is 30 ms and the plate is
a thin walled cylindrical pressure vessel has an outer diameter of 7.50 in and wall thickness of 0.250 in with an
An automated transfer line is to be designed. Based on previous experience, the average downtime per occurrence = 5.0 min, and the probability of a station failure that leads to a downtime occurrence p = 0.01.
A 50-kg traffic signal is suspended by two 21-m cables which have a mass of 1.2 kg per meter of length. Determine the vertical deflection 8 of the junction ring A relative to its position before the signal is added.
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