If the Radio Lobes of a Radio Galaxy Extend Out

question 63

Essay

If the radio lobes of a radio galaxy extend out to 10 Mpc from the center of the galaxy and the particles in them are traveling at approximately 0.99 c, then how long must the black hole at the center have been ejecting this material into space? Note that 1 Mpc = 3.1 *10²² m and 1 year= 3 *10⁷ s.

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