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An airplane, of overall length 55 ft, is designed to fly at 680 m/s at 8000-m standard altitude. A one-thirtieth-scale model is to be tested in a pressurized helium wind tunnel at 20°C. What is the appropriate tunnel pressure in atm? Even at this (high) pressure, exact dynamic similarity is not achieved. Why?
a one shell two tube pass surface condenser is required to handle the exhaust from a steam turbine developing 14 300 kw
energy is added to a piston cylinder arrangement, and the piston is withdrawn in such a way that the quantity PV remains constant. the initial pressure and volume are 200kpa and 2m3, respectively. the final pressure is 100kpa, calculate the work d..
Consider a system consisting of liquid water initially at T1 = 318 K, p1 = 3.5 bar undergoing a process to a final state at T2 = 353 K, p2 = 1.5 bar. Use appropriate equation with the data from the table to evaluate change in specific entropy.
A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent
a vehicle is powered by motors that have a maximum speed of 5000 rpm. each motor is coupled to the wheel using a gear
determining the eigenvalues of the state matrix.
It is required to design the DC motor to run a small size electric vehicle to beused inside an airport building to help the transportation of old people.
An ideal gas is confined to one side of a rigid, insulated container divided into equal volumes by a partition. The other side is initially evacuated. The following data are known for initial state of the gas: p1 = 300 kPa, T1 = 380K and V1 = 0.025 m..
A rigid vessel of capacity 0.6 m3 contains dry saturated steam at 4.0 bar. The vessel is cooled until the pressure is reduced to 2.0 bar, Calculate; a) the mass of steam in the vessel.
Water flows through the pipe at a constant average velocity of 0.5 m/s into the the tank having the width of 1.5 m. Determine the relation between the time needed to fill the tank to a depth of h = 3 m and the diameter D of the pipe at. Plot the time..
A hydraulic shear applies 2000 lb force to a wedge. It is used to shear plate steel to rough size. The shear has a 1/4 inch thick cutting blade with a 45 degree slope. What is the ideal mechanical advantage of the wedge?
A 168-grain bullet is accelerated in a 20 inch barrel and leaves the muzzle at 2800 ft/s. A) Determine the work done on the bullet by all external forces while the bullet is traveling in the barrel. B) Determine the kinetic energy of the bullet at th..
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