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ratelena [41]
3 years ago
12

(PLEASE HELP1!1!1!1!1!1!1!1!1!1)

Physics
1 answer:
AlladinOne [14]3 years ago
5 0

Answer:

electromagnets.

Explanation:

Coal has been used for years along with natural gas and nuclear energy so it would have to be electromagnets.

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andre [41]

Time = distance / speed

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If the estimated distance to the star is actually 4.8 x 10¹⁵ km, instead of 4.8 km, then the answer would be close to 500 years <em>(B)</em>.

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