At a crime scene, the forensic investigator notes that the 6.2-gg lead bullet that was stopped in a doorframe apparently melted completely on impact. The specific heat of lead is 130 J/kg⋅C∘J/kg⋅C∘, the heat of fusion is 25 kJ/kgkJ/kg, the melting point is 327∘C∘C. Assuming the bullet was shot at temperature 20 ∘C∘C, what does the investigator calculate as the minimum muzzle velocity of the gun?

At a crime scene, the forensic investigator notes that the 6.2-gg lead bullet that was stopped in a doorframe apparently melted completely on impact. The specific heat of lead is 130 J/kg⋅C∘J/kg⋅C∘, the heat of fusion is 25 kJ/kgkJ/kg, the melting point is 327∘C∘C. Assuming the bullet was shot at temperature 20 ∘C∘C, what does the investigator calculate as the minimum muzzle velocity of the gun?

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter19: Temperature

Section: Chapter Questions

Problem 19.2OQ: When a certain gas under a pressure of 5.00 106 Pa at 25.0C is allowed to expand to 3.00 times its...

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