You're pregante? 
kek
What were the answers in the pic
ultrasonic rocket scientist. impressive.
A is the front face reflection
B is the discontinuity
C is the back face reflection
D is the second discontinuity reflection
F is the 2nd back face reflection.
Its EZ man
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What do you mean f what's 21
okay so sound reflects in the object and bounces. Thats the second bounce that the transducer detects
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You send sound into an object and it bounces around
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You send soundinto metal
First detection is the front face aka the face you sent sound in.
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Are you stupid?
turn the other cheek 
no streams for a month got me acting unwise 
He worships a person who knows nothing but failure in his life, why even respond to him?
my sins are sloth and enjoying goy drama (pretend or real)
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For me its something I do when im queing or bored, for him its attempting to grasp on any superiority he thought he had (never actually had it)
who is [him]?
[him] is probably superior to you at dota whoever [him] is so he has that
More poetry???
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[him] is "failing" to get into dota stacks
What makes a man so fragile?