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A) A huge reservoir of air supplies a converging-diverging nozzle with throat and exit areas of 10 cm^2 and 25 cm^2 respectively. The reservoir pressure and temperature are 150 kPa and 20C. Determine the range of back pressure over which 1. normal shocks appear in the nozzle 2. Oblique shocks form at the exit 3. Expansion waves form at the exit 4. Calculate the mass flow rate through the nozzle for the case in which a normal shock appears at the plane. (B) Oxygen and carbon monoxide are mixed in the proportion 11 to 3 by mass. The oxygen is supplied at 7 bar and 40 C and the carbon monoxide is supplied at 1 bar and 15 C. The constituents are passed in steady flow through non-return valves to mix adiabatically at a pressure of 3 bar Calculate 1.the final pressure of the mixture 2. the partial pressure of each constituent of the mixture
Determine the ideal launch vehicle that can put this orbiter into the parking orbit. (hint: you do not have to consider the Sun in this problem. Only SOI of the Earth and the Moon)
Two flat, rectangular plates with a lateral dimension w*l lie parallel, one above the other, a distance h apart. The gap between them is filled with molten polymer.
Estimate the mass of the gas in the tank in kg assuming the gas behaves as an ideal gas. If the gas warms up to 35 deg C as it sits in the sun all day, what would the pressure rise to?
a hunter aims directly at a target 140 meter away. if the bullet leaves the gun ay a speed of 280 m/s, by how much will the bullets miss the target?
what speed will the sleeve attain? The temperature oƒ the sleeve remains constant.
Principles of Engineering Economic Analysis-Time value of money-use of gradient factor is expected
A new cast iron pipe is 5 km long and 15 mm diameter is used to convey water at a rate of 0.0150m3s-1. Given the absolute roughness of the pipe is 0.26 mm, density of water is 998 kg/m3 and dynamic viscosity of water is 1.14 × 10-3 kgm 1s-1.
an air-standard otto cycle uses 0.1 kg of air and has a clearance of 17%. THe intake conditions are 98 kPa and 37 C and the energy released during combustion is 1600 KJ/kg. What is the compression ratio of the cycle?
Two collars C and D move along the vertical rod as shown. Knowing that the velocity of collar C is 50 in/s downward, find the instant centers of all three bars, the angular velocity of AB, the velocity of collard D.
The tank air pressure above the water level is 300kPa(absolute) while the atmospheric pressure is 100kPA. Neglecting frictional effects, determine the initial discharge rate of water from the tank.(Density of water=1000kg/m^3)
Estimate the blood pressure in each branch, assuming that blood vessels behave as rigid tubes, that we have frictionless flow, and that the vessel lies in the horizontal plane. What is the force generated at the branch by the blood? You may approx..
How does artificial aging affect KIC in a 7075 alloy? Which is likely to have a higher KIC: 7075-T6 or 7075-T7? Explain.
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