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Light of wavelength 60nm illuminates a hydrogen atom in an excited state. An electron is ionized and is emitted at velocity v=2.5 * 10^6
a) what is the De Broglie wavelength of this electron?
b) What energy level was the electron in initially?
What is the greatest possible distance from the wall
The centers of a 10kg lead ball and a 90g lead ball are separated by 8.0cm. What is the ratio of this gravitational force to the weight of the 90g ball
Suppose he hits the ball with a speed of 29 m/s at an angle of 26° above the horizontal. Explain how long was the ball in flight? How far did it travel?
A certain atom has an energy level 3.70eV above the ground state. When excited to this state, it remains 9.00%u03BCs , What is the wavelength of the photon
An airtight container having a lid with negligible mass and an area of 101 cm2 is partially evacuated. what is the air pressure in the container before it is opened
After a hard rain, you walk out into the parking lot and notice an oil sheen on top of a puddle of water. when viewed from directly above, What wavelength of light is transmitted into the water
An interstellar spaceship is leaving Earth at a speed of %u03B2 = 0.548 for a deep space expedition. What is the geometric mean of the down-shifted and the up-shifted frequency
The angle of reflection of a reflected ray is 75º. what is the angle formed by the incident ray and the reflected ray?
Four charges are arranged in a rectangle with a length of 21 cm, and width of 15 cm. The charge on the top left corner is 4nC, the charge on top right corner is -3nC, the bottom right corner has a charge of 6nC, and the bottom left corner has a ch..
A 200 keV electron strikes a copper target and is brought to rest producing a single X-ray photon. What is the Compton scattering angle relative to the direction of the incident X-ray
At the end of an amusement park ride, you want the gondola to stop without the acceleration exceeding 2 g's. what is the maximum allowed braking force
A 70,000 kg spaceship wants to orbit a tiny black hole at a height of 10,000 m. What speed should the captain tell the computer to set the spaceship for
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