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Author Question: Pulsars were discovered because they _____. a. provide the energy to ionize supernova remnants b. ... (Read 40 times)

j.rubin

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on: Jul 27, 2018
Pulsars were discovered because they _____.
 
  a. provide the energy to ionize supernova remnants
 b. radiate gravitational waves
 c. absorb matter from a binary companion through an accretion disk
 d. emit short, regular bursts of radiation
 e. undergo nova eruptions on a regular period of a few years

Question 2

Whose geocentric model of the Universe dominated astronomy for 2,000 years?
 
  a. Kepler
 b. Copernicus
  c. Aristotle
 d. Galileo
 e. Ptolemy


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Ddddd

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

d

Answer to Question 2

c


j.rubin

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Reply 2 on: Jul 27, 2018
Gracias!

ghepp

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Reply 3 on: Yesterday
Excellent

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