Author Question: If a galaxy is receding from us at 0.10c. Use Hubble's law to estimate the distance to this galaxy ... (Read 60 times)

jc611 · **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