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Two L76 ×76 × 6.4-mm angles are welded to a C250 × 22.8 channel. Determine the moments of inertia of the combined section with respect to centroidal axes respectively parallel and perpendicular to the web of the channel.
a tank has two rooms separated by a membrane. room a has 1kg of air and a volume of 0.5 m3 room b has 0.75 m3 of air
the yield stresses of several samples of a steel containing 0.12 carbon with different grain sizes were measured. the
Steam at 3 MPa, 400C enters a turbine with a volume flow rate of 5 m^3/s. An extraction of 15% of the inlet mass flow rate exits at 600 KPa, 200C. The rest exits the turbine at 20KPa with a quality of 90% and a velocity of 20 m/s. Determine the volum..
a sprinkler essentially consists of a pipe ab mounted on a hollow shaft. the water comes in the pipe at o and goes out
Stearn enters a turbine with negligible velocity, at 4 MPa, 600°C and a flow rate of 36.000 kg/h. It leaves the turbine at 15 kPa with a velocity of 300m/s and a quality of 0.5. Determine the heat loss or gain for the steam as it passes through th..
Determine the radiation heat flux when a very thin layer of high-emissivity paint, sp = 0.98, is applied to both surfaces - Determine the radiation heat flux when the paint layers
The yearly average solar flux incident on a horizontal surface in the United States is about 180 W/m2. The average total energy demand in the United States is approximately 100 quads (100 × 1018 ) per year. Assuming an average efficiency of PV cells ..
a uniform cylinder with mass m 13kg and radius r is pulled from rest along level ground by a constant force f that
a bicycle rider rides from home along a highway and back along the same road in such a way that her distance from home
a wheel has an initial clockwise angular velocity of 12 rads and a constant acceleration of 5 rads2. a determine the
A vapor compression refrigeration cycle using R-134a as the working fluid has an evaporator temperature of -20°F, and a condenser pressure of 140 psia. The refrigerant is saturated at the inlet to the compressor and at the exit of the condenser. The..
A trapezoidal channel with a bottom width of 4.00 feet and side slopes of 2 horizontal to 1 vertical conveys a discharge of 300 cfs. If the depth of flow is 2.25 feet, what is the Froude number? Is the flow subcritical or supercritical?
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