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Steam enters a turbine steadily at 3 MPa and 450°C at a rate of 8 kg/s and exits at 0.2 MPa and 150°C. The steam is losing heat to the surrounding air at 100 kPa and 25°C at a rate of 300 kW, and the kinetic and potential energy changes are negligible. Determine (a) the actual power output, (b) the maximum possible power output, (c) the second-law efficiency, (d) the exergy destroyed, and (e) the exergy of the steam at the inlet conditions.
In a section of horizontal pipe with a diameter of 3.00 cm the pressure is 5.21 kPa and water is flowing with a speed of 1.50 m/s. What is the pressure in the narrower region
Show that the electric and magnetic fields of a point charge moving with constant velocity V are related by B = (1/c^2)(V x E) where c is the speed of light, and B and E are magnetic and electric fields respectfully
In a game of basketball, a forward makes a bounce pass to thecenter. The ball is thrown with an initial speed of 4.8 m/s at an angle of 14.2° below the horizontal. It isreleased 0.67 m above the floor. What horizontal distance does the ball cover ..
A charge +q is located at the origin, while anidentical charge is located on the x axis at x =+0.690 m. What is the distance from the third charge to the origin
Hooke's law describes a certain light spring of unstretched length 33.0cm. When one end is attached to the top of a door frame, and a 6.4kg object is hung from the other end, the length of the spring is 48cm.
a billiard ball of mass 0.162 kg has a speed of 1.31 ms and collides with the side of the billiard table at an angle of
A rock is thrown off a 120 meter cliff at a velocity of 2.9m/s [37o above horizontal]. Evaluate what is the final velocity of the rock as it hits the ground
A crystal is irradiated with X-ray photons with energies of 1.65 × 10-15 J. At what angles of incidence will the X-rays reflect from the crystal
The string in a yo-yo is wound around an axle of radius 0.520 centimeter. Evaluate what is the speed of the yo-yo when it reaches the distance of 1.36 meter
Babe Ruth steps to the plate and casually points to left centerfield to indicate the location of his next home run. The mighty Babe holds his bat across his shoulder by one hand holding the small end of the bat.
In a single-slit diffraction pattern on a flat screen, thecentral bright fringe is 1.6 cm wide when the slit width is 3.7 x10-5 m. What is the width of the second slit
Suppose we have a gas in thermal equilibrium at temperature T. Each molecule of the gas has mass m. (a) What is the ratio of the number of molecules at the Earth's surface to the number at height h(with potential energy mgh)?
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