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Author Question: If a galaxy is receding from us at 0.10c. Use Hubble's law to estimate the distance to this galaxy ... (Read 54 times)

jc611

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on: Jul 29, 2018
If a galaxy is receding from us at 0.10c. Use Hubble's law to estimate the distance to this galaxy if the Hubble constant is 22 km/s per million light-years. (c = 3.00  108 m/s, 1 ly = 9.461  1015 m, 1 y = 3.156  107 s)
 
  A) 1.4  109 ly
  B) 1.4  107 Mly
  C) 6.6  105 Mly
  D) 2.2 Mly
  E) 6.6  105 ly

Question 2

What size capacitor must be placed in series with a 40-mH coil so the circuit will oscillate with a frequency of 1000 Hz?
 
  A) 0.63 F
  B) 0.50 F
  C) 0.22 F
  D) 0.17 F


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deja

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Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

A


jc611

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Reply 2 on: Jul 29, 2018
:D TYSM

ashely1112

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Reply 3 on: Yesterday
Excellent

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