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Consider an engine in which the working substance is 1.23 mol of an ideal gas for which γ = 1.41. The engine runs reversibly in the cycle shown on the PV diagram (see figure below). The cycle consists of an isobaric (constant pressure) expansion a at a pressure of 15.0 atm, during which the temperature of the gas increases from 300 K to 600 K, followed by an isothermal expansion b until its pressure becomes 3.00 atm. Next is an isobaric compression c at a pressure of 3.00 atm, during which the temperature decreases from 600 K to 300 K, followed by an isothermal compression d until its pressure returns to15 atm. Find the work done by the gas, the heat absorbed by the gas, and the internal energy change of the gas, first for each part of the cycle and then for the complete cycle.
A moving particle encounters an external electric field that decreases its kenetic energy from 9640 eV to 6490 eV as the particle moves from position A to position B.
A planet requires 300 Earth days to complete its circular orbit around its sun, which has a mass of 6.0 x 1030 kg. What are the planet’s (a) orbital radius and (b) orbital speed?
The speed of sound V in a fluid depends upon the fluid density? And its bulk modulus B as follows: v = ^n.B^m. Using dimensional analysis, find the values of constants N and m, respectively. The unit of density is kg/m3 and that of bulk modulus B is ..
A particle of mass 9.81 g and charge 65.1 μC moves during a uniform magnetic field, in a region where the free-fall acceleration is -9.8 j m/s2without falling. The velocity of the particle is a constant 20.1 i km/s, which is perpendicular to the magn..
A 10 kg block is set in motion upa 20 degree inclined plane with an initial speed of 8.0 m/s. find the distance up the surface of the plane the block will travel
A refrigerator removes heat from the freezing equipment at the rate of 20kJ and ejects 24 kJ into a room per cycle. How much work is required for each cycle
An insulating sphere with a radius of 3.2×102 m has a uniform charge density of 5.78 C/m3 throughout its volume. Find the magnitude of the electric field at the surface of the sphere
After performing an experiment concerning charging a capacitor Sally noticed that the potential difference across the capacitor reached 2/3 of its final value after 18 seconds. find the time constant for the resistor-capacitor combination
A sailboat is heading directly north at a speed of 21 knots (1 knot = 0.514 m/s). The wind is blowing towards the east with a speed of 10.6 knots. (Both velocities are given relative to the Earth.)
A cosmic-ray proton in interstellar space has an energy of 10.0 MeV and executes a circular orbit having a radius equal to that of Mercury’s orbit around the Sun (5.80 × 1010 m). What is the magnetic field in that region of space?
The femur is a bone in the leg whose minimum cross-sectional area is about 4.3 x 10-4 m2. Find the maximum stress that this bone can withstand
1)A crate of potatoes of mass 19.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.82 and μk = 0.29. Find the frictional force (magnitude and direction) on the crate if the crate is sliding d..
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