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Pys. Science

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Help......A 1.0kg metal head of a geology hammer stikes a solid rock withy a velocity of 5.0m/s. Assuming all the energy is retained by the hammer head, how much will its temperature increase? (C
head= 0.11kcal/kgCdegrees) I don't comprehend any of this!

  • Pys. Science - ,

    kinetic energy in hammer= heat in hammer
    1/2 m v^2= m*specificheatSteel*deltatemp

    change in temperature= (1/2mv^2)/(m*specifheat)

    change in temperature= v^2/(2*specificheat)

  • Pys. Science - ,

    change in temperature: (5m/s)^2 /2*920

    Did you change kcal to joules? .11kcal=920Joules check that.

  • Pys. Science - ,

    now I'm really lost.....please explain?

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