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HipHopAggie
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A piano wire 0.80mm long and 0.80mm in diameter is fixed on one end.
The other end is wrapped around a tuning peg 3.0mm in diameter.
Initially the wire, whose Young's modulus is 2X10^10,
has a tension of 20N .

Find the tension in the wire after the tuning peg has been turned
through one complete revolution


Goose
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He's got a problem alright...

Scot
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I have a friend with a physics problem, but I think she is getting a reduction when she gets back from terrorist training camps.

Quantum ace
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I dont know, but have you tried using pi?

AgDrumma07
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math

Old School Brother
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how can it be 0.8mm long and 0.8mm in diameter? do you mean 0.8m long?

txagfred04
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42

that1guydrew
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tension doesn't matter, just call a piano tuner.

HipHopAggie
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can anyone help, she's needs the answer shortly


that1guydrew
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already gave you an answer, bud.

Scruffy
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it will take off.

Whiskey Jacket
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quote:
tension doesn't matter, just call a piano tuner.


fail


jm94
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Never seen a square piece of piano wire.

Whiskey Jacket
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quote:
0.80mm in diameter


jm94
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Okay, never seen a 0.8mm long piece of piano wire before.

Whiskey Jacket
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quote:

Okay, never seen a 0.8mm long piece of piano wire before.


This I would agree with


Disco Stu
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The tuning peg is moot.

Physics Clown
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138.4 N

Assuming you meant .8 m for the length instead of .8 mm


Vernada
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who does problems like this with actual numbers?



Mom Class of '03,'05 and '09
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ada, shut it and post a picture of Puddin!

Vernada
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ARE YOU STOCKIN ME AND MY PUDDIN!!?

Mom Class of '03,'05 and '09
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not you...and SHE IS MY PUDDIN!

Vernada
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Physics Clown
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Vernada
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Vernada
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gawd that's effin creepy.

try not to kill anyone tonight.


Scruffy
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Physics Clown
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Ragoo
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GET BACK IN THE STORM DRAIN

Ragoo
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damn that is great

Vernada
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you need to add that first one as your profile pic.

Physics Clown
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Who else has a math problem for the clown?

tford12
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GTech Ag....your a ramblin wreck

BBYD09
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this thread is nails

Junkhead
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Forums :: General :: Friend has a physics problem
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