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A solid rectangular simply supported timber beam 6 in. wide, 20 in. deep, and 10 ft long carries a concentrated load of 16,000 lb at midspan. Use nominal dimensions
(a) Compute the maximum horizontal shear stress at the neutral axis.
(b) Compute the shear stress 4 in. and 8 in. above and below the neutral axis. Neglect the weight of the beam.
A fourth-order polynomial passes through the five points for which the independent and dependent variables, x and y, respectfully, are given (-2,37), (-1,7), (0,5),(1,13), and
Air enters a nozzle steadily at 50 psia, 160Â°F, and 155 ft/s and leaves at 14.7 psia and 900 ft/s. The heat transfer from the nozzle to surrounding air is estimated to be 6.0
A piston-cylinder assembly fitted with a spring. The cylinder contains water, initially at 538oC, and the spring is in a vacuum. The piston face, which has an area of 125 c
1. Design a combinational logic circuit which will add two 4-bit binary numbers. 2. Minimize the expression described in the truth table of Figure P12.50, and draw the circuit
A water filtration system in an industrial process was purchased in 2014 for $250,000. It will be replaced at the end of year 2019. What is the estimated cost of the replace
A gas mixture at 675.0°C and 113 kPa absolute enters a heat exchanger at a rate of 69.0 m3/hr. The gas leaves the heat exchanger at 245.0°C. The change in enthalpy of the gas
An alternating copolymer is known to have a number-average molecular weight of 100000 g/mol and a degree of polymerization of 2210. If one of the repeat units is ethylene, whi
find an expression for rate of heat loss as a function of the other three parameters in the problem. (b) If the temperature difference ? T doubles, by what factor does the r
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