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A mixture by volume of 50% hydrogen and 50% carbon dioxide is flowing isentropically through a nozzle with flow rate of 1 m^3/s measured at inlet condition of 700 kpa and 373k the inlet velocity is negligible and the mixture expands to a pressure of 150 kpa determine
a-the exit temperature
b-the exit dimeter
c-the mass flow rate
Start from the values for the density and the kinematic viscosity of CO2 at 15o C and standard atmospheric pressure (101.3 kPa), and first determine the value of the dynamic viscosity at the same conditions.
How to calculate the principle of shoring system in formwork analysis when the secondly floor upper has been poured?
A $78,000 invtestment in machinery is proposed. It is anticipated that this investment will cause a reduction in net annual operating disbursements fo $16,300 a year for 12 years. The investement will be depreciated for income tax purposes
The railway crossing gate consists of the 100 kg gate arm having a center of mass at Ga and the 250 kg counterweight having a center of mass at Gw.
A supervisor is sitting at her desk illuminated by a 180 candela source 3 feet above it. She is writing with green ink (reflectance=30%) on a yellow note pad (reflectance=60%). What is the illumination on the note pad
A piston cylinder combination contains 2 kg of air at the ambient temperature of 25C and at the unknown ambient pressure. To provide a source of cooling on this hot Florida day
A simple supported beam 6m long is composed of two C200x28 channel RIVETED FRONT TO FRONT . What uniformly distributed load can be carried in addition to the weight of the beam w/o exceeding a flexural stress of 125MN/m^2
Two monitoring wells were constructed in an unconfined aquifer. The wells are separated by a distance of 250 ft. The water surface elevations in the up-gradient and down-gradient wells were 101.00 and 100.85 ft, respectively.
The vertical effective stress at a certain point in a loose sand is 1000lb/ft^2. If an earth quake were to occur, how much excess pore water pressure would need to develop at this point for liquefaction to occur
Alexis borrows $10,000 today and promises to pay it back in equal monthly installments of $250. If the agreed loan interest rate is 6% compounded monthly
A force, 90 N in magnitude, is applied to control rod AB as shown. Knowing that the length of the rod is 225 mm, determine the moment of the force about point B by resolving the force into components along AB and in a direction perpendicular to AB..
Plot ω vs t, marked by red stars. Label the x-axis, t,and the y-axis, ω. Give the plot a suitable title. Add a legend to the plot describingthe relationship between ω and t. Change the y-axis scale to show the plotfrom estimate ω is -100 to 1100.
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