- #1
roxxyroxx
- 48
- 0
Homework Statement
If a star explodes 30 light years from the Earth when will we be able to see it?
Homework Equations
one light year = 9.47 x 1012km
speed of light = 3.00 x 108m/s
The Attempt at a Solution
the answer in my workbook says 30a but idk what the value of a is