Reference no: EM132782635
1. A rocket speeds past an asteroid at 0.800 c. If an observer in the rocket sees 10.0 s pass on her watch, how long would that time interval be as seen by an observer on the asteroid?
2. An electron has a rest mass of 9.11 × 10^-31 kg. In a detector, it behaves as if it has a mass of 12.55 × 10^-31 kg. How fast is that electron moving relative to the detector?
3. If the mass loss during a nuclear reaction is 14 micro grams. How much energy is realised?
4. Calculate the maximum KE and velocity of an electron ejected from zinc by a 275nm photon. (wave function of zinc is 4.33 eV)
5. How many photons are emitted per second by a 5mW laser source operating at 632.8nm.
6. A hydrogen atom moving at a speed v absorbs a photon of wavelength 122 nm and stops. Find the value of v if the mass of hydrogen is 1.67 X 10^ -27 kg
7. What is the wavelength of the radiation emitted when the electron in a hydrogen atom jumps from n = infinite to n = 2.
8. Ultraviolet light of wavelength 280nm is used in an experiment on photoelectric effect with lithium (work function = 2.5eV). Find the KE of the photo electrons
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Calculate the magnitude of the average force
: Calculate the magnitude of the average force on a bumper that collapses 0.300 m while bringing a 800-kg car to rest from an initial speed of 1.0 m/s.
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What is the force constant of the spring
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How you would frame a message to mobilize support for case
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How much the impairment loss was
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Calculate the maximum ke and velocity of electron
: A rocket speeds past an asteroid at 0.800 c. If an observer in the rocket sees 10.0 s pass on her watch, how long would that time interval
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What is companies break even point in sales dollars given
: What is the companies break even point in sales dollars given the sales mix? The budget assumes sale of 20,000 units of A, 100,000 units of B, and 80,000 units.
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Calculate the acceleration
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How the history and philosophy has shaped
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Are the aircraft moving at a constant velocity
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