The gas in a bipolar flow can travel as fast as 300km/sec how long would it take to travel 1 light year?

Question

just show me the equation to convery from km to light years, i can figure out the rest.

Answer 1

Light year means the distance light travels in one year.

Light travels at 299792.458 km/s

All we need to do is figure out how many seconds there are in a year.

There are 365 days a year, 24 hours a day, 60 minutes an hour, 60 seconds a minute.  So that means that the number of seconds in a year is:

365*24*60*60

=3153600 seconds

So then we figure out how far a light year is now we know how fast light is and how many seconds there are in a year.

299792.458 km/s * 3153600s

=9.45425*10^12 km or 9.45 million million kilometres.

So then you divide the distance by speed, and you get time

V=D/t

Vt=D

t=D/V

t=9.45425*10^12 km / 300 km/s

t=3.151*10^10 seconds

And then this breaks down to 999.3 years.

Or you can do it the short hand method.  300km/s is roughly 1/1000 the speed of light, and so then it is safe to assume that it would take 1000 years to travel 1 lightyear.

Answer 2

Well since light travels at 300,000 km/sec, that means that the ratio (km/sec) between the speed of light and the speed of the gas in a bipolar flow are equivalent. A very short, simple process. Follow these directions:

divide 300,000 by 300 and you get=1000

since, yet again, light travels at 300,000 km/sec and a bipolar flow travels at 300 km/sec, that would mean it would take 1000 years for the gas in a bipolar flow to travel 1 lightyear.

PS: Gothika was incorrect on the part about finding how many seconds in a year. That would only find how many km are in one lightyear.

Answer 3

You don't need to do km to light years =P

But if you want to do that, sure.

Light speed is c.

c=300,000 km/s.

Solve for how many seconds in a year, and...

you can figure out the rest..

But might I suggest this:

If the gas travels 300 km/s, that means light travels 1,000 times faster. So it would take the gas 1000 times as long to travel a light year, lol. Simple math =D

So your answer is 1,000 years.

Answer 4

1000 earth years