Now let’s determine when the universe “started its trip”. The distance is 800 Mpc, but first convert Mpc into km because the rate, or velocity, is in km/sec. 800 Mpc = _____________________km Use equation (E) to determine how many seconds ago the universe started: _____________________secs

Physics for Scientists and Engineers with Modern Physics
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Chapter44: Particle Physics And Cosmology
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Problem 30P
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Now let’s determine when the universe “started its trip”. The distance is 800 Mpc, but first convert Mpc
into km because the rate, or velocity, is in km/sec.
800 Mpc = _____________________km
Use equation (E) to determine how many seconds ago the universe started:
_____________________secs

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