Absorption and Reflection of Sound

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Teacher the test isn’t hard


The test:

abrifazliu
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anyone else procrastinating one subject, by watching educational videos for other subjects?

Ovvkoz
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Actually 17m is required to hear echo as 2×17 is 34m. At 34m one can hear echo as it will take 0.1s to travel that distance at 22 degree Celsius.

allsfacilitated
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How sound tranmission on power line with voltage

ericphantri
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My teacher send this as a link for online learning, trust me, it’s hard to learn online

essagamer
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I am so confused I'm just looking at my YouTube comment history out of curiosity and why was I commenting "stop this" responding to all the comments under this video I had to watch for school two years ago??? lol what?? I'm so confused lmao

beepboop
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Useful. But horrible nostalgic and depressive music. Dislike

MrBelascoaranShayne
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what is the language of this lady it is horrible i did not understand

amirazayed