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1. Helium in an external storage tank on a spacecraft is expanded through an isentropic attitude control nozzle with a negligible inlet velocity from 2.00 MPa, 10.0 K to 0.0100 MPa. Assuming constant specific heats and using the generalized charts, determine the exit temperature and velocity.
2. Sulfur dioxide with a negligible inlet velocity is expanded through an isentropic nozzle from 20.0 MPa, 500. K to 0.200 MPa in a chemical processing unit. Assuming constant specific heats and using the generalized charts, determine the exit temperature and velocity.
A 0.4 W cylindrical electronic component with a diameter of 0.3 cm and length 1.8 cm is mounted horizontally on a circuit board. To cool the component air is flowing across the board at a velocity of 150 m/min. If the air temperature is T∞= 45°C, ..
This computer is dedicated to this task, so you must show all the software for the computer. The program never quits, repeats the loop over and over. Use gadfly or interrupt synchronization, whichever is most appropriate.
A plumbing fixture outlet is 18 ft above the water service line. Pressure available at the water service is 80 psi. Determine the change in pressure from elevation.
A 2-D reducing bend (of unit width w) is shown below. Note that flow enters the bend at section 1 with a linear velocity profile, but at sections 2 and 3 is uniform. Find the velocity at section 3.
Manganese has a density of 7.44 g/cm^3. Given that the activation energy for vacancy formation is 1.1 eV/atom, calculate the number of vacancies per cubic meter of Manganese at 1200 degrees C. The atomic weight of manganese is 54.94 amu.
a rigid tank whose volume is 0.5 m3 initially containing ammonia at 20oc 1.5 bar is connected by a valve to a large
You wish to design the rung on a ladder. The ladder should be light in weight so that it can be easily transported and used. The rungs on the ladder should be 0.25 in. x 1 in. and are 12-in. long. Design a material and its processing for the rungs..
landing gear system structural designproblem statement consider the landing gear shown below. working in teprns of two
Assuming that the joints at A, B, and C act as hinged connections, compute the compression in each brace BC. Wet concrete may be treated as a liquid with a density of 2400 kg/m3.
An expansive soil has an active-zone thickness of 10 ft. The natural moisture content of the soil is 25% and its liquid limit is 60. Calculate the free surface swell of the expansive soil upon saturation.
work is consumed by a pump moving liquid he from a tank to a superconducting computer system. before the system is
refrigerant 134a at 10 bars 38oc flows at 10.0 kgs through a heat exchanger leaving at 9.0 bars and 80oc. it exchanges
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