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MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
A bullet made of a lead alloy has specific heat 148 J/kg-K, melting point 850o C, latent heat of fusion 18.9 kJ/kg. The bullet is fired and becomes buried in a block of wood. Find the minimum speed at which the bullet must be moving, in m/s, so that when it stops the bullet will be entirely melted. Assume:
- the bullet starts at temperature 36.2o C.
- negligible energy is lost heating the wood or the air.
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