Answer: 500 s
Explanation:
Speed [tex]v[/tex] is defined as a relation between the distance [tex]d[/tex] and time [tex]t[/tex]:
[tex]v=\frac{d}{t}[/tex]
Where:
[tex]v=3(10)^{8}m/s[/tex] is the speed of light in vacuum
[tex]d=1.5(10)^{11}m[/tex] is the distance between the Earth and Sun
[tex]t[/tex] is the time it takes to the light to travel the distance [tex]d[/tex]
Isolating [tex]t[/tex]:
[tex]t=\frac{d}{v}[/tex]
[tex]t=\frac{1.5(10)^{11}m}{3(10)^{8}m/s}[/tex]
Finally:
[tex]t=500 s[/tex]