A negative muon decays to form an electron and a mu neutrino and one additional particle. The other particle must be a(n)
a. positron.
b. antineutrino.
c. neutrino.
d. photon.
b
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Which statement about the Moon's solar month and sidereal month is correct?
A. The solar month is the same length as the sidereal month. B. The solar month is more than two days longer than the sidereal month. C. The solar month is more than two days shorter than the sidereal month. D. The solar month is used in our calendars during the summer season while the sidereal month is used only during the winter season.
In interactions taking place by the strong force, which of the following quantities are conserved?
a. electric charge b. baryon number c. mass-energy d. strangeness e. linear momentum f. angular momentum (spin)
Reducing the magnetic field to 71% of its previous value changes the magnetic energy density in the field to _______% of its original value.
A. 39 B. 50 C. 71 D. 85 E. 15
Which of the following is an example of a chemical change? water freezing into ice crystals breaking a glass window gasoline being used in the engine of a car producing exhaust aftershave or perfume on your skin generating a smell a piece of metal expanding when heated, but returning to original size when cooled
1. gasoline being used in the engine of a car producing exhaust 2. water freezing into crystals 3. aftershave or perfume on your skin generating a smell 4. a piece of metal expanding when heated, but returning to original size when cooled 5. breaking a glass window