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For a constant steam boiler temperature of 400.°C, a constant turbine exhaust moisture content of 5.00%, and a constant condenser pressure of 3.00 kPa, plot the Rankine cycle thermal efficiency vs. boiler pressure over the boiler pressure range from 1.00 to 20.0 MPa. Ignore the power required by the boiler feed pump.
A bucket of mass 1.00 kg is whirled in avertical circle of radius 1.40 m. At thelowest point of its motion the tension in the rope supporting the bucket is 25.0 N. Find the speed of the bucket
a 13.5-kg box slides over a rough patch 1.75 m long on a horizontal floor. just before entering the rough patch the
A solid spherical ball of mass 1.32 kg and radius 0.08 m rolls along a smooth, level surface with a speed of 2 m/s. How far up the plane does the ball go
A glass is half-full of water, by a layer of vegetable oil (n = 1.47) floating on top. A ray of light travelling downward during the oil is incident on the water at an angle of58.0°. Decide the critical angle for the oil-water interface
q1. a unit of area often used in measuring land areas is the hectare defined as 114 m2. an open pit coal mine consumed
An air-track glider is attached to a spring. The glider is pulled to the right and released from rest at t =0s . It then oscillates with a period of 1.50 sand a maximum speed of 36.0 cm/s. What is the amplitude of the oscillation? What is the glider'..
A second baseman tosses the ball to the first baseman, who catches it at the same level from which it was thrown. Evaluate how long is the ball in the air
How much work is done by the motor when the position of the arm is moved from x = 0.200 m to x = 0.750 m? If the work is done in 4.50 s, what is the power of the motor in W
If two sound waves, one in air and one in (fresh) water are equal in intensity, what is the ratio of the pressure amplitude of the wave in water to that of the wave in air? Assume the water and the air are at 20°C.
An electron is moving through a region of space which possessesa uniform electric field and uniform magnetic field. The electricpoint in the positive x direction and has a magnitude of E = 2,500v/m.
A neutron hits a stationary deuteron and scatters 90 degrees from its original direction of motion. The collision is elastic. What fraction of the neutron's kinetic energy did it give to the deuteron?
The kinetic energy of a proton is 80 percent of its total energy. Evaluate what is the speed of the proton
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