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Consider an air standard jet engine cycle operating in a 280K, 100 kPa environment. The compressor requires a shaft power input of 4000 kW. Air enters the turbine state 3 at 1600 K, 2 MPa, at the rate of 9 kg/s, and the isentropic efficiency of the turbine is 85%. Determine the pressure and temperature entering the nozzle at state 4. If the nozzle efficiency is 95%, determine the temperature and velocity exiting the nozzle at state 5.
We have two blocks connected by a string and tied to a wall, with an angle of 33o. Find the tension in the string that is tied to the wall
a 15-kg block rests on a level frictionless surface and is attatched by a light string to a 5.0-kg hanging mass, what is the tension in the connecting string
Calculate Ann and Sam's translational velocities vA and vS and the frequencies fS and fA at which they are spinning.
A 68.0 kg person escapes from a burning building by jumping from a window 25m above a catching net. Assuming that air resistance exerts a 95N force on the person during the fall, determine the person's velocity just before hitting the net.
a garden hose is attached to a water faucet on one end and a sparay nozzle on the other end. the water faucet is turned
a cylinder contains 4.0moles of a monoatomic gas at an initial temp of 27deg C. How much heat flows in to our out of the gas
Ed cycled 75.57 km inone hour. Suppose the entire distance was made by traveling oncearound a large circular track. what is the average force that maintains his circular motion
A person pushes a 12.3-kg shopping cart at a constant velocity for a distance of 16.5 m on a flat horizontal surface. What is the magnitude of the force that the shopper exerts
The pressure in the fluid at the distance from the axis of rotation is. You may ignore the variation in pressure with depth; suppose that it is much smaller than the variation in pressure with radius.
A generator driven by a diesel engine that develops 12 hp delivers 28 A at 240 V. What is the efficiency of the generator
a singly ionized oxygen atom moves at 9000ms in a circular path perpendicular to a 0.85t magnetic field. find the
Calculate the cenrtripetal acceleration of the Earth in itsorbit around the Sun, and the net force exerted on the Earth. What exerts this force on the Earth
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