Recent content by Iamtoast

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    Where Has the Missing Energy in a Stretched Wire Gone?

    Thanks y'all Thank you TVP (textured vegetable protein?) 45 and Shooting Star. I like your response and the gently mocking humour with which it is laced. Priceless.
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    Where Has the Missing Energy in a Stretched Wire Gone?

    Homework Statement Perhaps a more provocative title will engage readers: I am in the vacuum of space. I carefully load a wire with a mass of 8kg, supporting the mass all the while with my hand. The wire stretches by 4.2 cm. What is the potential energy stored by the wire? What is the loss...
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    Calculating Strain Energy & Potential Energy Loss: 8kg Mass on 4.2cm Wire

    Thank for your illuminating response.
  4. I

    Calculating Strain Energy & Potential Energy Loss: 8kg Mass on 4.2cm Wire

    How? Why? Again, why?
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    Calculating Strain Energy & Potential Energy Loss: 8kg Mass on 4.2cm Wire

    I am not sure that this answers my question. Imagine doing this experiment in a vacuum, carefully loading the wire so that it does not oscillate. The problem here seems to be that irrespective of the size of the mass, only half of the gpe lost is recoverable as stored elastic potential energy.
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    Calculating Strain Energy & Potential Energy Loss: 8kg Mass on 4.2cm Wire

    I naturally checked this before posting. Do you have an alternative suggestion?
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    Calculating Strain Energy & Potential Energy Loss: 8kg Mass on 4.2cm Wire

    A simple problem: a mass of 8 kg is placed on the end of a copper wire. The wire extends a distance of 4.2 cm. Calculate the potential energy stored in the wire and the loss of potential energy of the mass. The elastic strain energy stored in the wire = 1/2 . F . x = 1.65 J The loss of...