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In changing the state of a gas adiabatically from an equilibrium state A to another equilibrium state B, an amount of work equal to 22.3 J is done on the system. If the gas is taken from state A to B via a process in which the net heat absorbed by the system is 9.35 cal, how much is the net work done by the system in the latter case? (Take 1 cal = 4.19 J)
Earth has a mass of 5.98 × 1024 kg. The average mass of the atoms that make up Earth is 40 u. How many atoms are there in Earth
A 11.20 kg object oscillates at the end of a vertical spring that has a spring constant of 2.10 104 N/m. The effect of air resistance is represented by the damping coefficient b = 3 N•s/m.
As F is enhancement d, the block would either begin to slide, or begin to tip over. What must be the coefficient of static friction ms so that the block begins to slide rather than tip.
What is the smallest thickness of a soap film (n=1.40) that would appear black if illuminated with 470nm light? Assume there is air on both sides of the soap film
An electron confined in a one-dimensional box is observed, at different times, to have energies of 20 , 45 , and 80. What is the length of the box
The density of ma ial at the center of a neutron star is approximately 1.00 x 10^18 kg/m^3. Calculate the mass of a cube
He slides so that his speed is zero just as he reaches the base. Explain how much mechanical energy is lost due to friction acting on the runner? How far does he slide?
A fisherman notices that his boat is moving up and down periodically without any horizontal motion, How fast are the waves traveling
In Larry Niven's science-fiction novel Ringworld, a rigid ring of material rotates about a star. The inhabitants of this ring world live on the starlit inner surface of the ring, What is the length of a year on this planet
Two waves with identical frequency but different amplitudes A1 = 6.0 cm and A2 = 3.0 cm, What is its amplitude if they interfere destructively
A cylinder with a piston contains 0.250 mol of oxygen at 240000 pascal and 355 kelvin. The oxygen may be treated as an ideal gas. The gas first expands isobarically to twice its its original volume. It is y then compressed isothermally back to its..
The proper length of one spaceship is five times that of another. The two spaceships are traveling in teh same direction, determine the speed of the other faster spaceship
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