It takes 1.3 to 1.4 nanoseconds for light to travel 1 foot.
1.5 days = 1.29600 × 1014 nanoseconds.
3.154e+31
None. It's a trick question. Light travels in firsts.
I could write 1 femtosecond as "1 femtosecond" : not a zero in sight. or as 0.000001 nanoseconds (6 zeros) or .000001 nanoseconds (5 zeros) 1 fs = 10-15 seconds so there are 14 0s between the decimal point and the 1.
How many hours does it take to get to 4.5 billion km
The Earth is 500 light-seconds from the Sun. One second is 10^9 nanoseconds.
473,099,999,999,999,936 nanoseconds.
3.1536E+24 nanoseconds.
5.9327x10 ^19 nanoseconds
1 microsecond = 1,000 nanoseconds.
Six years = 1.89216e17 nanoseconds.
1 second = 1000000000 nanoseconds
9.5 years = 299,629,999,999,999,936 nanoseconds.
20,000,000,000 nanoseconds = ~0.333 minutes.
24 hours = 86,400,000,000,000 Nanoseconds
1 day = 8.64e13 nanoseconds.
1.5 days = 1.29600 × 1014 nanoseconds.