A 25-kg iron cannonball is fired with speed 220 m/s. If it hits a concrete wall and half of its initial kinetic energy (KE =mv²) is converted to internal energy in the cannonball (or heats the cannonball), then how much does the temperature of the cannonball increase? The specific heat of iron is 450 J/kg.°C.

A 25-kg iron cannonball is fired with speed 220 m/s. If it hits a concrete wall and half of its initial kinetic energy (KE =mv²) is converted to internal energy in the cannonball (or heats the cannonball), then how much does the temperature of the cannonball increase? The specific heat of iron is 450 J/kg.°C.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter21: Heat And The First Law Of Thermodynamics

Section: Chapter Questions

Problem 68PQ

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