The distance from the earth to polaris is approximately 5.78 * 1018 m. the speed of light is 2.99792 * 108 m/s. if the north star polaris were to burn out today, in how many years would it disappear from our vision? answer in units of years.

Question

Geography

Ali Rojas

25 June, 10:33

The distance from the earth to polaris is approximately 5.78 * 1018 m. the speed of light is 2.99792 * 108 m/s. if the north star polaris were to burn out today, in how many years would it disappear from our vision? answer in units of years.

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Answers (1)

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Yahir Campos · Answer 1

V = d / t

t = v/d

-> 2.00 * 10 ^ 10 s

divide by 3600 and by 24 to get days

->232414 days

divide by no of days in a year

giving 636 years approx.