Question

ad for the distance from the sun tothe earth is 1.5 x 10"m. how long does it take for light from ths sun to reach the eath? give your answer n seconds

Answer 1

About 8.3 minutes

Step-by-step explanation:

Use the formula for velocity as the distance covered by the light divided the time it takes:
`[tex]velocity=(distance)/(time)`[/tex]

Use the information about the speed of light in vacuum:
`300000000 (m)/(s) = 3*10^(8) (m)/(s)`

and the information you are given regarding the distance between Sun and Earth:
`1.5 * 10^(11) m`

to solve the first velocity equation for the unknown time "t":

`velocity=(distance)/(time) \\3*10^8(m)/(s) =(1.5*10^11 m)/(t) \\t=(1.5*10^11 )/(3*10^8) s= 500 s`

we can convert second into minutes by dividing by 60: 500 s = 500/60 minutes = 8.3333... minutes