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Author Question: What must be true in order for astronomers to be able to use the Doppler technique to determine a ... (Read 18 times)

lb_gilbert

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on: Jul 27, 2018
What must be true in order for astronomers to be able to use the Doppler technique to determine a planet's mass?
 
  A) The planet's orbit must be viewed nearly edge on.
  B) The planet must have a very low mass.
  C) The planet must have a very eccentric orbit.
  D) The planet's orbit must be seen nearly face on.

Question 2

How will an isolated, one solar-mass star die?
 
  A) as a neutron star
  B) as a black hole
  C) as a white dwarf supernova
  D) as a white dwarf
  E) uncertain, since stars can die in any number of ways


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fur

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

A

Answer to Question 2

D


lb_gilbert

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Reply 2 on: Jul 27, 2018
:D TYSM

kilada

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Reply 3 on: Yesterday
Excellent

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