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

Respuesta :

Answer:

About 8.3 minutes

Explanation:

Use the formula for velocity as the distance covered by the light divided the time it takes: [tex][tex]velocity=\frac{distance}{time}[/tex][/tex]

Use the information about the speed of light in vacuum: [tex]300000000 \frac{m}{s} = 3*10^{8} \frac{m}{s}[/tex]

and the information you are given regarding the distance between Sun and Earth: [tex]1.5 * 10^{11} m[/tex]

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

[tex]velocity=\frac{distance}{time} \\3*10^8\frac{m}{s} =\frac{1.5*10^11 m}{t} \\t=\frac{1.5*10^11 }{3*10^8} s= 500 s[/tex]

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

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