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1. Air enters a converging-diverging isentropic nozzle at 10.0 MPa and 500. K with a negligible velocity and is accelerated to a Mach number of 4.50. Determine the static temperature, pressure, and density at (a) the throat, and (b) the exit. (c) Find the exit to throat area ratio.
2. Low-velocity helium enters a converging-diverging isentropic nozzle at 250. psia and 120.°F. It is accelerated to a Mach number of 2.0. at the exit. Determine the static temperature, pressure, and density at (a) the throat, and (b) the exit. (c) Find the exit to throat area ratio.
A solid Cylinder with a mass of 10 kg is attached to an inclined plane.A 2kg block is attached to a string that is wrapped around the cylinder. Find the angular acceleration of the cylinder
The working substance of an engine is 1.00 mol of diatomic gas. The engine operates in a cycle consisting of three steps, Find the efficiency of this cycle
Calculate the rate of diffusion of Sodium chloride (NaCl) at 180 C through a stagnant film of water, 1.0 mm thick, when the concentrations are 20 % and 10% by weight on either side of the film.
A 1.2-{\rm cm}-tall candle flame is 58{\rm cm} from a lens with a focal length of 22{\rm cm}, What is the height of the flame's image
Scott is rolling down a 30° slope on his skateboard. The total mass of Scott and the skateboard is 75 kg. What is Scott's acceleration
A child has a temperature of 101F. If her total skin area is 18 m2, find the energy loss per second due to radiation, assuming the emissivity is 1
A beam of light in air strikes a glass lab at common incidence. The glass slab has an index of refraction of 1.50. (a) About what percentage of the incident light intensity is transmitted through the slab (in one side or out the other)? (b) Repeat Pa..
Two particles are fixed to an x axis: particle 1 of charge -4.00 10-7 C at x = 6.00 cm, and particle 2 of charge +4.00 10-7 C at x = 42.0 cm
The single slit diffraction pattern shown below was made with light with λ = 480 nm. If the slit had a width 9 mm, what is the width w of the central maximum in cm
A 10 ohm resistor and a 20 ohm resistor are connected in parallel. What is the equivalent resistance of this setup
A long horizontal wire carries 28.0 Amp of current due north. Find what is the angle of the net magnetic field
An ideal spring with spring constant k - 105 N/m is compressed by 14cm by the block until it is released. a) After the block is released and just as it looses contact with the spring, what is the velocity of the block?
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