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(a) What is the average kinetic energy of hydrogen atoms on the 5500°C surface of the sun?
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(b) What is the average kinetic energy of helium atoms in a region of the solar corona where the temperature is 5.10 ? 105 K?
Two identical spacecraft are to be accelerated by rockets. The first rocket fires with a force 4 times as large as that of the second rocket. The acceleration of the first rocket is how many times as vast as the acceleration of the second rocket.
A point charge of 8.40 mC is surrounded by an equipotential surface with a radius of 0.298 m. What is the electric potential on the surface
At what angle should the highway engineer bank. What is the magnitude of the acceleration.
One end of a 30 cm long aluminum rod with diameter 2 cm is kept at 460*C while the other end is held in water at 25*C
In a nebula, the amount of interstellar extinction in the visible wavelength band is 1.1 magnitudes. The thickness of the nebula is estimated to be 16 pc and it is located 458 pc away.
John, a 76-year-old grandfather, had been smoking heavily for 26 years and had a persistent cough. A biopsy of his lung tissue revealed considerable amounts of carbon particles. How might this happen considering the natural cleaning mechanism of the ..
An object falls off of a pier and into the ocean (sea water) where it displaces a total volume of 1.6 cubic meters of sea water. What is the buoyant force acting on the object
A positive charge moves in a region where the magnetic field is uniform, has a magnitude of 60 uT and points in the positive x direction. what is the radius of the resulting path
A standard 35mm slide measures 24mm by 36mm. Suppose aslide projector produces a 60cm by 90cm image of the slide on a screen. What is the distance between the slide and the screen
A cart of mass M = 1.2 kg can roll without friction on a level track. A light string draped over a light, frictionless pulley connects the cart to a hanger with mass m = 0.5 kg. The cart is released from rest, allowing it to roll, pulled by falling h..
A spaceship of proper length 308 m takes 0.76 µs to pass an Earth observer. Determine the speed of this spaceship as measured
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 5.73 m/s, What is the maximum possible value for d
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