The answer is either c or d but c is the best answer
It IS <span>PE = (1200 kg)(9.8 m/s²)(42 m) = 493,920 J </span>
The evidence that astronomers use to prove jets travel in opposite direction is Spectral lines from a very fast moving ionized gases.
<h3>Who are the astronomers?</h3>
Astronomer is a person who study astronomy which is a scientific study that has to do with space, space bodies, comets, planets, stars and so on.
Therefore, The evidence that astronomers use to prove jets travel in opposite direction is Spectral lines from a very fast moving ionized gases.
Learn more about astronomers below.
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Sorry if im wrong but I'll say kinetic energy
Hope it helps:)
It is transferred evenly to water through air