A lead bullet with a mass of 0.05 kg traveling at 188 m/s strikes an armor plate and comes to a stop. If all the energy is converted to heat and absorbed by the bullet, what is the temperature change?

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  1. mv²/2 =mcΔT
    for lead c =130 J/kg•K
    ΔT= v²•c/2= 188²/2•130=135º

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