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A sealed rigid tank contains 30 moles of an ideal gas, at an initial temperature of 270k The pressure of the gas is increased until the final pressure equals 1.40 times the initial pressure. The heat capacity at constant pressure of the gas is 32J/mol•k. What is the change in the internal (thermal) energy of the gas during this process? (R = 8.31 J/mol · K)
a 1300- kg car rolling on a horizontal surface has speed v 60kmh when it strikes a horizontal coiled spring and is
Calculate the recoil speed of the hydrogen atom, assumed initially at rest, if it makes the transition from n = 4 to n = 1 in a single quantum jump.
A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions. The speakers are 28.0 m apart and the total power of the sound coming from each speaker is 0.478 W.
A circular loop of wire rests on a table. A long, straight wire lies on this loop, directly over its center, as the drawing illustrates. The current I in the straight wire is decreasing. In what direction (clockwise, counter clockwise or no direction..
A potter's wheel moves uniformly from rest to an angular speed of 0.17 rev/sin 34 s. Discover its angular acceleration in radians per second per second.
The first three natural frequencies of an organ pipe are 126.0 Hertz, 378.0 Hertz, and 630.0 Hertz. Determine is the pipe open or closed
Water is contained in a closed, rigid, 0.25 m3 tank at an initial pressure of 5 bar and a quality of 60%. Determine the final mass of vapor in the tank
One skater throws a .3 kg ball at 5 m/s to his friend, who catches it and throws it back at 5 m/s. When the first skater has caught the returned ball, Illustrate what is the velocity of each of the two skaters?
Essay on fluids like The surface of the Liquid, Capillary Action, Viscous fluid flow.
You need to design a photodetector that can respond to the entire range of visible light. What is the maximum possible work function of the cathode
Bob walks directly north for 400 m, then turns 45 degrees to his right and jogs at 5 m/s for 500 m northwest, then turns another 30 degrees to his right and walks 600 m. Discover Bob's net displacement vector. Include both direction and magnitude. Wh..
There are three charges fixed on xy plane. They are q1 = 1mC at (0,0) , q2 = -2mC at (17 mm, -5 mm), and q3 = -3mC at (-2 mm, 11 mm) a) What is the force on q2?
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