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A system with an initial volume of 2 m is filled with water at 3 MPa, 400 deg C.
It is now cooled at constant volume to 200 deg C. This process is followed by an isothermal process ending at the saturated liquid state. Determine the total heat transfer required in kJ.
a system executes a power cycle while receiving 1050 kj by heat transfer at a temperature of 525 k and discharging 700
a 0.06m 3 rigid tank initially contains water at 1.5 mpa with a quality of 20. the tank is heated and a pressure
steam enters one inlet of an adiabatic mixing chamber at 1.4mpa and 300 c. at the second inlet steam enters at 1.4mpa
an initially empty bottle is filled with water from a line at 0.8 mpa 350 deg c. assuming no heat transfer and that the
2 kg of saturated water vapor at 600 kpa are contained in a piston-cylinder device. the water expands adiabatically
a cannon is pointed at 60 degrees angle relative to flat horizontal field. it fires a projectile with a muzzle speed of
a spherical balloon filled with heliumm is initially at 300 k and 100 kpa with a diameter of 5 cm. the balloon is
a whip crack is illustrated below. to crack the whip it is thrown forward with a velocity of 10 ms and the handle is
a sample containing 3.00 mol of an ideal gas at 25c is expanded isothermally and reversibly from an initial volume if
a rigid tank 0.4 m3 contains air at 400 kpa and 30c and is connected by a valve to a piston-cylinder device with zero
Unpolarized light with intensity I0 is sent ?rst through a polarizer with the polarizing axis aligned in the vertical direction, and then through a second polarizer with the polarizing axis oriented 30° from the vertical. What is the intensity of ..
An empty sled of mass 25kg slides down a muddy hill with the constant of 2.40m/s. The slope of the hill is inclined at the angle of 15 degrees with the horizontal.
Find the magnitude of the potential difference between two points located 1.1m apart in a uniform 630 N/C electric field
A particle with a charge of -60.0 nC is placed at the center of a nonconducting spherical shell of inner radius 20.0 cm, Calculate the speed of the proton
A 1.80Kg brick is sliding next to on a rough horizontal surface at 13.5m/s .If the brick stops in 4.80, how much mechanical energy is lost.
A28.0-kg block is initially at rest on a horizontal surface. A horizontal force of 76.0N is required to set the block in motion, after which a horizontal force of57.0N is required to keep the block moving with constant speed.
In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 20000 V. The speeds of the electrons are quite large.
A rock is projected from the edge of the top of a building with an initial velocity of 12.2 m/s at an angle of 53° above the horizontal, How tall is the building
Suppose two identical spheres are insulated: sphere A carries +3.54Q and sphere B carries -20.2Q, What is the charge on sphere A now
A copper sheet of thickness 3.90 mm is bonded to a steel sheet of thickness 4.40 mm. The outside surface of the copper sheet is held at a temperature of 170.0 °C and the steel sheet at 34.0 °C.
Your eye (diameter 2.5 cm) is able to focus the image of a tree on your retina. What is the size of the image of the tree on your retina
The generator at a power plant produces AC at 27,000 V. A transformer steps this up to 355,000 V for transmission over power lines. how many turns must there be in the output coil
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