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A supersonic converging-diverging nozzle is to be designed to be attached to a standard machine shop air supply having isentropic stagnation conditions of 100. psia and 70.0°F. The throat of the nozzle is to have a diameter of 0.250 in, and the nozzle exhausts into the atmosphere at 14.7 psia. For an isentropic nozzle, determine
a. The exit Mach number.
b. The exit temperature.
c. The mass flow rate of air through the nozzle.
d. The exit diameter of the diverging section.
A 0.534-nm photon collides with a stationary electron. After the collision the electron moves forward and the photon recoils backwards. Find the momentum of the electron.
Initially, it is in the n = 4 energy level, but after a photon is absorbed the electron is in the n = 7 energy level. What was the wavelength of the absorbed photon?
A very long, thin rod carries electric charge with the linear density 28.0 nC/m. It lies along the x axis and moves in the x direction at a speed of 15.0 Mm/s. Find the electric field the rod creates at the point.
Oil - 40% efficient; CO2 Emissions (g/mol) 70 g/mol Natural gas - 23% efficient; CO2 Emissions (g/mol) 50g/mol Coal - 23% efficient; CO2 Emissions (g/mol) 90 g/mol. How much CO2 is produced per second
a fluid flows through a horizontal pipe of radius 0.02m. the pipe is turned up to a height of 10m and a horizontal pipe
Solar energy is incident on the pond at an average rate of 400 . If the water absorbs all the solar energy and does not exchange energy with its surroundings, explain how many hours will it take to warm from 15 to 25 ?
The cars stick together and move as a unit after the collision, at an angle of 47.0° north of east and at a speed of 6.36 m/s. Find out the speed of the 3000 kg car before the collision.
A steel ball with radius 1 cm is rolling along a table with speed 20.00 cm/sec when it starts to roll up an incline. How high above the table level would it rise before stopping.
a diver springs upward from a board that is 3.17 meters above the water. at the instant she contacts the water her
An electric bus operates by drawing current from two parallel overhead cables, at a potential difference of 600 V, and spaced 59cm apart. What is the repulsive force per unit length between the cables
A spring scale is fastened to the ceiling of a railway car. When a 1.0-kg block is hung from the scale, it reads 12 N and is oriented as shown in the figure. What is the approximate acceleration of the car as measured by an observer at rest on the gr..
Suppose an asteroid is found that appears to be heading directly toward Earth (using Earth's location at the time of discovery). It is 4.2 A.U. away (i.e., 4.2 times the Earth-Sun distance), and travelling through the Solar System with a speed of ..
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