When considering the law of conservation of lepton number for a reaction, how many different lepton numbers must be checked?

a. 1
b. 2
c. 3
d. 6


c

Physics & Space Science

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The period-luminosity relationship is primarily used for main-sequence stars

a. True b. False Indicate whether the statement is true or false

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The highest energy level in an atom corresponds to n = _________

Fill in the blank(s) with correct word

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The Moon orbits the Earth the Earth orbits the Sun. If the Earth-moon system is ˜1 AU from the Sun and takes ˜1 Earth year to orbit, what is the combined mass of the triple system? Express your answer in solar mass units.

a. 1 b. 1.1 c. 1.2 d. 1.3

Physics & Space Science

Does the magnetic force on the longer sides of the generator loop help or hinder the rotation of the generator loop?

A. The magnetic forces on the loop hinder the rotation of the generator loop. B. The magnetic forces on the loop neither help nor hinder the rotation of the generator loop. C. The magnetic forces on the loop help the rotation of the generator loop.

Physics & Space Science