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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.
1kg of helium gas is compressed isentropically from 150 kpa 60oc to 300kpa. the gas is considered an ideal gas with
Consider two actual power plants operating with solar energy. Energy is supplied to one plant from a solar pond at 80°C and to the other from concentrating collectors that raise the water temperature to 600°C. Which of these power plants will have a ..
a balanced wheel supported on springs is rotating at 1200 rpm. if a bolt weighing 15 g and located 5 cm from center
A Pitot-static probe is sued to determine the airspeed of an airplane that is flying at an altitude of 6000 m. If the stagnation pressure is 4.8540x104 N/m2 recorded by a gage that measures the difference between the stagnation pressure and the stati..
Calculate the net cycle work in kJ assuming air is an ideal gas with constant specific heats.
a car moves along an x axis through a distance of 990 m starting at rest at x 0 and ending at rest at x 990 m.
a piston of diameter 100 mm moves inside a cylinder of 100.1 mm diameter. find the percent decrease in force necessary
Steam with a mass flow rate of 200,000 lb/hr enters a well insulated turbine at 1100 psi, 900degreeF through a duct with a flow area of 1ft^2. A portion of the steam is extracted at p=130psi,T=380degreeF and exits through a 1 ft diameter duct at v=60..
A system experiences a heat transfer into the system of 50 Btu and does work against the surroundings of 2100 ft-lbf reducing its horizontal velocity from 2 fps to 1.5 fps. The mass of the system is 3 lbm. Determine the amount if change in internal e..
An IFR turbine rotor is designed with 13 vanes and is expected to produce 400 kW from a supply of gas heated to a stagnation temperature of 1100 K at a flow rate of 1.2 kg/s.
For the automobile, determine its changes in kinetic and potential energy, each in kJ. For each quantity, kinetic energy and potential energy, specify your choice of datum and reference value at that datum. Let g 5 9.81 m/s2.
You are given a sheet of steel with a modulus of rigidity is G = 80.8 Gpa, a length L = 1 m, width w = 100 mm, and thickness t = 1 mm. You are asked to design a shaft cross-section by shaping the given steel sheet. The machine that is available to yo..
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