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Author Question: If Hubble's constant is taken to be 70 km/s/Mpc, and a quasar is found with a radial velocity of ... (Read 103 times)

TFauchery

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on: Jul 27, 2018
If Hubble's constant is taken to be 70 km/s/Mpc, and a quasar is found with a radial velocity of 0.95 times the speed of light, how far away is the quasar?
 
  a. 4100 Mpc
  b. 0.014 Mpc
  c. 67 Mpc
  d. 74 Mpc
  e. 300,000 Mpc

Question 2

The theory that the collapse of a massive star's iron core produces neutrinos was supported by
 
  a. the size and structure of the Crab nebula.
  b. laboratory measurements of the mass of the neutrino.
  c. the brightening of supernovae a few days after they are first visible.
  d. underground counts from solar neutrinos.
  e. the detection of neutrinos from the supernova of 1987.


cassie_ragen

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

a

Answer to Question 2

e


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