Ask Question
1 September, 11:30

a 905 - g meteor impacts the earth at a speed of 1623 m/s. if all of its energy is entirely converted to heat in the meteor, what will be the resulting temperature rise of the meteor, assuming it does not melt? assume the meteor is made of iron.

+2
Answers (1)
  1. 1 September, 11:40
    0
    Answer: 2859.78 k

    Explanation: By using the law of conservation of energy, the kinetic energy of the meteor equals the heat energy.

    Kinetic energy = 1/2mv^2

    Heat energy = mcΔθ

    Where m = mass of meteor, v = velocity of meteor = 1623 m/s

    c = specific heat capacity of meteor (iron) = 460.548 j/kg/k

    Δθ = change in temperature of meteor = ?

    From law ofconservation of energy, we have that

    1/2mv^2 = mcΔθ

    By cancelling "m" on both sides, we have that

    v^2/2 = cΔθ

    v^2 = 2cΔθ

    (1623) ^2 = 2 * 460.548 * Δθ

    2634129 = 921.096 * Δθ

    Δθ = 2634129 / 921.096

    Δθ = 2859.78 k
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “a 905 - g meteor impacts the earth at a speed of 1623 m/s. if all of its energy is entirely converted to heat in the meteor, what will be ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers