was bored at work...so decided to see if my phone could calculate how

K

KevinM

Member
many km light would travel in 750 millio? light would travel in 750 million years. Phone came up with 7.0956e21 ( base on a rounded up 300km/s) can anyone give me an actually..numerical version of that? Like 10e14 is 100 trillion. Trying to find the actually number tho...like 7 followed by 30 zeros or some such.
 
S

sun

Member
(300 million (km / s)) * 750 million years = 7.10030834 × 10^27 meters
You used light traveling at 300km/s while it actually travels at 300,000,000 km/s roughly.
 
B

bornyesterday

New member
One step at a time.

1 year = 365.2422 d/y × 24h/d × 3.6×10³s/h = 3.1557×10^7s
3.1557×10^7 × 7.5×10^8 = 2.367×10^15 seconds
3×10^8m/s = 3×10^5km/s

3×10^5km/s × 2.367×10^15s = 7.1×10^20km
 
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