Physics, asked by Pravilu, 10 months ago

Please do this and I would give you 25 points for the whole paper and I would mark as brainiest and for sure follow you on brainly!!! And would even thank and donate 100 points!!!

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Answers

Answered by njb007
2

Answer:

1. compression -- A, C, E, G, I, K.

rarefaction -- B, D, F, H, I.

2. here, the Person from 1 spaceship can't here the sound of other. bcz there are no air particles nor any other medium that can make travelling of sound waves possible.

task B...

3 A. loudness of sound is directly proportional to the amplitude of sound waves.

Sounds Intensities Permissible exposure time

City Traffic 85 dB 8 hours

Bulldozer 88 dB 4 hours

Jazz Concert 91 dB 2 hours

Power Mower 94 dB 1 hour

Nightclub 97 dB 30 minutes

Ambulance Siren 100 dB 15 minutes

Rock Concert 115 dB 30 seconds

sounds above 180 - 200 dB are really harmful for our ears and can even make a person deaf.

hope it may help u.

thank u.

Answered by Monshi13
2

Answer:

Compression : A, C, E, G, I, K.

Rarefaction : B, D, H, F, I.

2. The film does not based on laws of physics if the inhabitants of the spaceship in outer space hear the sound of a nearby spaceship as it zooms past at high speeds.

  • Outer space is a mere vacuum without any medium .Sound can not travel in vacuum . It needs a medium to propagate .
  • Thus , the inhabitants actually can't hear the sound

Mark me brainliest

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