If a star is shown to be 33.11 trillion kilometers away, how many light years would that be?
Answers
Answer:
The definition I found is: 1 light year = 9.4605284 x 10¹⁵ meters
OK. 1 trillion = 1 x 10¹² .
Also,1 kilometer = 1,000 meters,
so 1 trillion kilometers = 1 x 10¹⁵ meters.
And we're ready now to find the number you want.
33.11 x 10¹⁵ meters / 9.4605284 x 10¹⁵ meters = 3.5 light years
plzzz mark brainllest
Explanation:
The star is 3.519 lightyears away
Given
A star is 33.11 trillion kilometers away
To Find
Distance away in lightyears
Solution
1 trillion = 1, 000, 000, 000, 000
Therefore 33.11 trillion km = 33, 110, 000, 000, 000 = 3311 X 10¹⁰
Now, 1 light year is the distance traveled by light in one year
Speed of light = 300,000 km/s
First, we need to find the number of seconds in a year.
One year has 365 days which have 24 hours and every hour has 3600 sec
Therefore, the number of seconds in a year
= 365 X 24 X 3600 sec
=31,536,000 sec
Therefore,
one light year = 31,536 X 10³ X 3 X 10⁵ km
= 94,068 X 10⁸ km
Therefore the distance between the star and us in light years
= (3311 X 10¹⁰)/ (94,068 X 10⁸) light years
= 3.519 lightyears
Hence, the star is 3.519 lightyears away
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