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A 20KN tensile force is applied to a rectangular steel specimen, determine the final length, width, and thickness, if the initial dimensions are (l = 100.0 mm, w = 20.0mm t = 5.0 mm). Assume Poisson's ratio is 0.4 and Young's Modulus is 20GPa.
A 1000 kg machine is mounted on four identical springs of total spring constant K and negligible damping. The machine is subjected to a harmonic external force of amplitude F = 490 N and frequency 180 rpm. Find the amplitude of the motion of machi..
The Acme Company claims to have designed an adiabatic turbine that will produce 126.2 BTU per pound of steam. The operating conditions are labeled on the diagram below. Is this company's claim valid or is this a perpetual motion machine? Hint: Determ..
the hybrid vehicle engine produces an average of 25 kw of power output and has an efficiency of 65. assume it runs 200
if a car pasess point a with a speed of 20 ms and begins to increase its speed at a constatnt rate of atangential 0.5
a six-cylinder four-stroke spark-ignition engine operating on the ideal otto cycle takes in air at 100 kpa and 25oc and
the velocity of a lift increases uniformly from zero to its maximum value at mid-height (1.4m) in 7.5s and then decreases uniformly to zero in 7.5s. The peak power output is 6kW when the velocity is maximum, determine the maximum lift force provid..
Pervaporation is used to produce nearly pure ethanol from a feed with 90 percent ethanol and 10 percent water. The feed enters at 80°C, and the design calls for reheating the liquid after the temperature has dropped to 70°C.
Find the values of z0 and θ0 if w = 0 corresponds to z = ∞.
liquid sodium leaves a nuclear reactor at 80 degrees celsius and is used as the energy source in a steam power plant.
a concrete slab measuring 0.3m x 4m x 6m initially at 298 k is exposed to the sun for several hours after which its
the endurance limit of a steel component is 112 mpa and the ultimate tensile strength is 385mpa. what is the fatigue
water at 20 degrees celsius is flowing with velocity of 0.5 ms between two parallel flat plates placed 1 cm apart.
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