The cosmic microwave background is the total of all the radio emissions from all the galaxies and quasars in the universe

Indicate whether the statement is true or false


FALSE

Physics & Space Science

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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

Physics & Space Science

A bullet moving at 244. m/s strikes a tree and penetrates a distance of 8.34 mm before stopping. Assuming a constant acceleration, how long did it take the bullet to stop?

What will be an ideal response?

Physics & Space Science

A circuit contains two inductors of 6.0-mH inductance in series placed in parallel with an inductor of 8.0-mH inductance. After one of the 6.0-mH inductors burns out, the repair person wants to replace all three inductors with one inductor of equivalent inductance. Assuming inductors combine in series and parallel the same way resistors do, what  inductance should she use?

A. 3.0 mH B. 3.4 mH C. 4.8 mH D. 11 mH E. 20 mH

Physics & Space Science

Consider the two systems below, labeled A and B

Physics & Space Science