Quasars are faint, distant sources of radio waves. ( Quasar is short for \"quasi
ID: 1665715 • Letter: Q
Question
Quasars are faint, distant sources of radio waves. (Quasaris short for "quasi-stellar source." They are so named because,like a star, they appear to the astronomer to be pointlike.) Fromthe shift in the frequency of their emitted light toward the red,called the "redshift," we know that quasars are moving very fast.Astronomers observe that the more distant an object is from theearth, the faster it moves. In this way they determine that quasarsare billions of light years from earth. To be visible at this greatdistance, quasars must have enormous luminosity. Typically a quasarradiates energy at a rate on the order of 1040 W,roughly 1014 times greater than the sun or 40 timesgreater than the most luminous galaxy. At what rate is rest massbeing consumed to produce this much radiation?1 kg/s
I know that W=J/s and E=mc^2
W/c=J/(sc)=kg/s