A muon, or mu meson, has the same charge as an electron, but is 207 times as massive. a) Compared with electron-positron pair production, the pair production of a muon and antimuon requires a photon of what energy? E = _____ MeV b) What would be the minimum frequency for such a photon? f = _________ Hz

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An electron and a positron, each with a kinetic energy of 2.500 MeV, annihilate, creating two photons that travel away in opposite directions.What is the frequency of each photon?

7. Borg ships are cubical. A Borg ship is approaching earth. According to an observer on earth, the Borg ship is 1000 m high, 1000 m wide, and has a depth of 200 m. Earth launches a photon torpedo to destroy the Borg ship. The torpedo is launched from earth with a velocity of 0.99. The torpedo was set on earth to go off in 2 hr. 09 ce 1000 m Earth 200m a) With what velocity is the Borg ship approaching earth? b) What is the speed of the torpedo as measured by an observer on the Borg ship? ) According to an observer on the Borg ship, how long will it take the torpedo to explode?

A photon has a frequency of 7.50 x 10141014 Hz, a. Determine the energy and the momentum of this photon. b. If all the energy of this photon were to be converted to mass, determine the equivalent mass for the particle. c. A microscopic specimen has a wavelength of 8.2×10−14m8.2×10-14m and a speed of 1.1×105 m/s1.1×105 m/s. Determine the mass of this microscopic specimen

What is the approximate uncertainty in the mass of a muon, as determined from its decay lifetime?

4. Typical measurements of the mass of a A particle (1230 MeV/c²) are shown in the figure. Although the lifetime of the delta is much too short to measure directly, it can be calculated from the energy- time uncertainty principle. Estimate the lifetime from the full width at half-maximum of the mass measurement distribution shown. 25 MA Le 1000 1100 1200 1300 1400 1500 Mass of the delta particle M/ Number of mass me amare in each bin

Suppose a proton is moving at 1.25 % of the speed of light. a)Calculate the wavelength, in meters, of a photon that has the same momentum as this proton. b) What is the energy of the photon, in megaelectron volts? c) What is the kinetic energy of the proton, in megaelectron volts?

An electron and a positron, with a mass of 9.1 x 10-31 kilograms, annihilate each other, producing two photons. What is the approximate energy of each emerging photon? It is 0.51 Mev 2.0 MeV 4.0 MeV 1.02 MeV It cannot be determined unless the frequency of the photon is known.