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A container of ideal gas for which the thermal energy is given by Eth = 2.6 * n * R * T is initially at pressure Pi= 1.1 x 105 Pa, Volume Vi= 6 Liters, and temperature Ti = 280 K. An amount of energy, 380 J, is removed from the gas thermally by placing the container in a refrigerator. The gas is held at constant pressure as the energy is removed. What is the change in temperature of the gas due to the removal of the energy? Give your answer in Kelvin to three significant digits. Do not include the units in your answer.
A circular disk with the rectangular hole has a radius of 0.540 m and mass of 0.440 kg. It is suspended by a point on its perimeter. The moment of inertia about this point is I_p = 1.7×10-1 kgm2.
A bare helium nucleus has two positive charges and a mass of 6.64 10-27 kg. What voltage would be needed to obtain this energy
A swing is made from a rope that will tolerate a maximum tension of 6.44 x 102 N without breaking. What is the mass of the heaviest person
A system of 1219 particles, each of which is either an electron or a proton, has a net charge of -6.640×10-17 C. How many protons are in this system (exactly)
A red 2·kg ball traveling 8·m/s due north collides with a green 2·kg ball traveling 5·m/s due west, what direction is he green ball going after the collision
A thin, uniform, metal bar, 2m long and weighing 90N , is hanging vertically from the ceiling by a frictionless pivot. Find the angular speed of the bar just after the collision
A Light from a 556-nm monochromatic source is incident upon the surface of fused quartz (n = 1.56) at an angle of 51°. What is the angle of reflection (in degrees) from the surface
A box of well called as breakfast cereal states that one small portion of the cereal contains 110 Calories (1 Cal = 4186 J). If 2.0 percent of this energy could be converted by a weight lifters body into work completed in lifting a barbell.
50j of work are done per cycle on a refrigerator with a coefficient of performance of 3.0.a how much heat is extracted
A car of mass 1530 kg traveling at 24 m/s is at the foot of a hill that rises 110 m in 3.8 km. Find the average power delivered by the car's engine
A spherical surface completely surrounds a collection of charges. Find the electric flux (with its sign) through the surface
A 45 kg girl is standing on a 130 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of 1.33 m/s relative to the plank.
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