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What is the classical acceleration of the electron in a hydrogen atom, separated from the proton by 5.29 x10?11 m? Electron mass = 9.11 x10?31 kg. Hint- first find the force on the electron, in newtons.
Two parallel rods are each 0.50 m in length. They are attached at their centers to either end of the spring (spring constant = 150 N/m) that is initially neither stretched nor compressed.
What is the length of the greatest and thinnest string that can be located under a tension of 860 without breaking .
A 0.600 mole sample of an ideal gas is at a temperature of 303 K at atmospheric pressure. Calculate the volume occupied by the gas
A meteorite that has a mass equal to 30.8 tonne (1 tonne = 1000 kg) is exhibited in the American Museum of Natural History in New York City, Find the magnitude of the impulse experienced by the meteorite up to the time its kinetic energy was halved
What fraction of incident intensity is transmitted by system
Two ideal gases have the same mass density and the same absolute pressure. One of the gases is helium (He), and its temperature is 180 K. The other gas is neon (Ne). Illustrate what is the temperature of the neon?
A 2,493-kg car is moving down a road with a slope (grade) of 14% at a constant speed of 13 m/s. compute the direction and magnitude of the frictional force
Communications satellites are placed in a circular orbit where they stay over a fixed point on the equator. Find average speed of the satellite in geosynchronous orbit
If an object is placed 0.820cm from the objective lens, calculate the distance between the lenses when the microscope is adjusted for a relaxed eye
A microphone is attached to a spring that is suspended from the ceiling, as the drawing indicates. determine the amplitude of the simple harmonic motion
A playground is on the flat roof of a city school, 5 m above the street below (see figure). The vertical wall of the building is h = 6.20m high, to form a 1.20 m high railing around the playground.
In open heart surgery a much smaller amount of energy will defibrillate the heart, What voltage is applied to the 9.00 µF capacitor of a heart defibrillator that stores 55.0 J of energy
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