A spectroscopic binary shows periodic variations in its

a. radial velocity.
b. proper motion.
c. brightness.
d. mass.
e. spectral type.


A

Physics & Space Science

You might also like to view...

Why do scientists use the scientific method?

What will be an ideal response?

Physics & Space Science

Which of the following statements correctly describes the law of conservation of energy?

A) An object always has the same amount of energy. B) Energy can change between many different forms, such as potential, kinetic, and thermal, but it is ultimately destroyed. C) Energy can change between many different forms, such as potential, kinetic, and thermal, but the total quantity of energy in the universe never changes. D) The fact that you can fuse hydrogen into helium to produce energy means that helium can be turned into hydrogen to produce energy. E) It is not really possible for an object to gain or lose potential energy because energy cannot be destroyed.

Physics & Space Science

Which of the following is not true for both the photon and the neutrino

a. Both are uncharged. b. Both have spin ?. c. Both can carry different amounts of momentum. d. Choose this answer if all of the above are true.

Physics & Space Science

Which of the following moons has retrograde motion?

a. Ganymede b. Titan c. Miranda d. Triton

Physics & Space Science