3,0 x 10^8ms / 6,862 x 10^-7m
[3 x 10^8 ] / [6.682 x 10^-7]
We can write this as :
[3 / 6.682 ] x [ 10^8 / 10^-7] ≈
.449 x 10^15 ≈
4.49 x 10^14
