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    meekadn's Avatar
    meekadn Posts: 11, Reputation: 1
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    #1

    Mar 6, 2006, 08:50 AM
    Don't understand problem
    I don't understand how to complete this problem: Find the minimum diameter of an 17.3 m long tungsten wire that will stretch no more than 9.43 mm when a load of 361 kg is hung on the lower end.
    dmatos's Avatar
    dmatos Posts: 204, Reputation: 26
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    #2

    Mar 21, 2006, 07:57 PM
    You'll need to use the Young's modulus of tungsten. It can describe the force exerted by an object under strain:

    F = Y x A x deltaL / Lo

    I don't know if your prof wants you to take into account the weight of the tungsten wire as well as the load, though.
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