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Author Question: The combined mass of a binary system is three solar masses. Star A is 1 AU and Star B is 2 AU from ... (Read 90 times)

Jkov05

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on: Jul 27, 2018
The combined mass of a binary system is three solar masses. Star A is 1 AU and Star B is 2 AU from the center of mass. What are the masses of Star A and Star B, respectively?
 
  a. 2.5, 0.5 b. 1, 2
  c. 2, 1 d. 0.5, 2.5

Question 2

The material that accretes onto a neutron star or black hole is expected to emit X-rays because
 
  a. the material will produce synchrotron radiation.
  b. hydrogen nuclei begin to fuse and emit high-energy photons.
  c. the material will become hot enough that it will radiate most strongly at X-ray wavelengths.
  d. as the material slows down it converts thermal energy to gravitational potential energy.
  e. None of the other choices are correct.


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thall411

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Reply #1 on: Jul 27, 2018
Answer to Question 1

c

Answer to Question 2

c


Jkov05

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Reply 2 on: Jul 27, 2018
Gracias!

rleezy04

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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