This is an astronomy question. Trying to figure out the age of the universe. I don't even know what its asking.
3000 km/sec divided by 50 mpc
2006-11-28 16:10:45 · 3 answers · asked by vette_311 2 in Science & Mathematics ➔ Astronomy & Space
what should my units be for answer?
2006-11-28 16:11:28 · update #1
The question deals with the expansion of the Universe, with the simplifying assumption that the object asserted to have an expansion speed away from us (by measuring its red-shift) has ALWAYS been traveling at 3,000 km/sec, and that its (known) distance is 50 Mpc.
However, your requested operation is inverted! That is obvious since any number of Mpc's (a length) divided by a speed (km/sec) will give one a time, but yours, quite the opposite, will give you 1 over a time. Personally, I prefer my wristwatch to measure time t rather than t^(-1), but hey, if you could develop that, there might still be someone out there who'd want to buy it!
Live long and prosper.
2006-11-28 19:14:32 · answer #1 · answered by Dr Spock 6 · 0⤊ 0⤋
What's the question? How long it takes to go 50 Mpc at a velocity of 3000 km/sec????
If so then here's how it works --
50Mpc = 1.54286^21 km
1.54286^21 / 3000 = 5.14287^17 seconds
1.54286^21 seconds = 1.6308^10 years
It would take 1.6308^10 years to travel 50 Mpc at a speed of 3,000 km/sec
2006-11-28 16:57:46 · answer #2 · answered by Chug-a-Lug 7 · 0⤊ 0⤋
It should be kilometers per mile. if that makes any sense!
(Km/sec.) / (ml/sec.) = (Km/sec) x (sec/ml)
The seconds council out and you have Km/ml.
300/50 = 60 kl/ml
I don't really know what the hell that represents but that's how it comes out to be.
2006-11-28 16:25:06 · answer #3 · answered by Nikolas S 6 · 0⤊ 0⤋