A lead bullet is fired into a wall and is embedded. A myth claims that a bullet can be completely melted due to friction. A friend of yours doubts that this is possible. Using your physics knowledge you set out to test the validity of the myth. The first assumption that you make is that ALL kinetic energy of the bullet is converted into heat due to friction and the second assumption is that it was a pleasant day with an ambient temperature of 25.0°C. Determine the minimum speed of the lead bullet that will be required to achieve the outcome of the myth. Is this myth of the melting lead bullet plausible if you consider that the average bullet can reach speeds of 700 m/s? The latent heat of fusion for lead is 2.32 x 10 J/kg, the specific heat of lead is 128 J/(kg.C) and the melting point of lead is 327°C.

A lead bullet is fired into a wall and is embedded. A myth claims that a bullet can be completely melted due to friction. A friend of yours doubts that this is possible. Using your physics knowledge you set out to test the validity of the myth. The first assumption that you make is that ALL kinetic energy of the bullet is converted into heat due to friction and the second assumption is that it was a pleasant day with an ambient temperature of 25.0°C. Determine the minimum speed of the lead bullet that will be required to achieve the outcome of the myth. Is this myth of the melting lead bullet plausible if you consider that the average bullet can reach speeds of 700 m/s? The latent heat of fusion for lead is 2.32 x 10 J/kg, the specific heat of lead is 128 J/(kg.C) and the melting point of lead is 327°C.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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