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In this cycle, air is first compressed in a piston-cylinder cylinder assembly in an adiabatic process. Heat is then added with the volume held constant to raise the pressure. Then it is expanded in an adiabatic process. Then heat is removed to bring the pressure back down to the original pressure. During these compression and expansion processes, the pressure-volume relationship can be approximated by PVn = constant where n is approximately 1.4. The initial volume of the cylinder is 1 m3 (a really big engine cylinder) and it is at one atmosphere of pressure. It is compressed to a volume of 0.1 m3. At this same volume, heat is added to increase the pressure to 50 atmospheres and then the air expands back to 1 m3. Then heat is removed to bring the pressure back down to 1 atmosphere with the volume held constant at 1 m3.
If 500 kJ of heat are removed from the cylinder after the expansion to bring the pressure back down to one atmosphere, what is the efficiency of this cycle?
A charge of -5.8 micro-Coulombs is placed at x = 0, y = 0. A charge of +17.1 micro-Coulombs is placed at x = 0, y = +36 cm. Another charge of +34.8 micro-Coulombs is placed at x = +33 cm, y = 0 cm. What is the magnitude of the total electric force..
If you treat an electron as a classical spherical object with radius 2.00×10?17 m, what angular speed is necessary to produce a spin angular momentum of magnitude sqrt3/4h, calculate the speed of a point at the electron's equator
The refractive index of a material is 2.58. What is the critical angle for a light ray
An astronaut leaves Earth in a spaceship at a speed of 0.280C relative to Earth. If the destination is a star system 12.5 light-years away as measured by an observer on Earth, what is the distance to the star system as measured by the astronaut..
Two cylindrical rods, one copper and the other iron, are identical in lengths and cross-sectional areas. What is the voltage between the ends of the copper rod
A box of mass 19.0 kg is sitting on a flat horizontal floor with a coefficient of static friction of 0.30 between the box and the floor. What minimum tension in the string is required for the box to just start moving
a ball of mass 0.075 kg is fired horizontally into a ballistic pendulum. the pendulum mass is 0.350kg. How much kinetic energy was lost in the collision
a rectangular tank open to the atmosphere is filled with water to a depth of 2.5 m as shown. a u-tube manometer is
Illustrate which plot best represents the total linear acceleration of the ladybug as a function of time? (t = 0 is the instant the turntable begins to accelerate.)
A long straight metal wire of radius r1= 3.10E-2 m is surrounded by a metalic cylindrical shell of inner radius r2= 1.19E-1 m and outter radius r3= 1.81E-1 m. The axes of the wire and the cylindrical shell coincide.
At the end of a race a runner decelerates from a velocity of 10.00 m/s at a rate of 0.400 m/s2. What is her final velocity
An airplane makes a gradual 90° turn while flying at a constant speed of 200 m/s.The process takes 20.0 seconds to complete. For this turn the magnitude of the average acceleration of the plane is:
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