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diamong [38]
3 years ago
14

Why does an astronaut have to use electrical medium to talk in the space​

Physics
2 answers:
Evgen [1.6K]3 years ago
8 0

Explanation:

because there is no air to communicate

Mars2501 [29]3 years ago
8 0

yur answer mate hope it helps

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Space junk, or space debris, is any piece of machinery or debris left by humans in space. It can refer to big objects such as dead satellites that have failed or been left in orbit at the end of their mission. It can also refer to smaller things, like bits of debris or paint flecks that have fallen off a rocket.

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3 years ago
After a 50-kg person steps from a boat onto the shore, the boat moves away with a speed of 0.70 m/s with respect to the shore. I
Svetradugi [14.3K]

Answer:

M=125 kg

v=1.75 m/s

Explanation:

From the law of linear momentum

  P =mv

Case 1     50*V =M* 0.7     equation 1

               50*V =(M+50)* 0.5    equation 2

equating 1 and 2

               M* 0.7=(m+50)* 0.5

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Putting value of M in equation 1

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