Question

Give reason
1: Why can't astronauts hear each other in space without the use of microphone?
2: A bomb explosion on moon can't be heard? ​

Answer 1

Answer:

1. because space is vaacum there is no atmosphere in space so that air will not be available

2.the earth is far away from moon so that we can hear and no atmosphere is in moon

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Answer 2

Answer:

1.One can't hear in the vacuum of space because sound doesn't travel through vacuum, it needs a medium. ... Those are inside the helmet, which contains air and thus a medium for sound. The radio signal is able to travel from one astronaut to another, through the vacuum of space because it isn't a sound wave.