- #1
Karol
- 1,380
- 22
Homework Statement
A lead bullet flies at 350[m/s], hits and stops. if no heat escapes, how much will it's temperature rise
Homework Equations
##Q[cal]=m\cdot c\cdot \Delta t##
Specific heat of lead: c=0.031
1[cal]=4.186[Joule]
The Attempt at a Solution
The kinetic energy: [itex]E=\frac{1}{2}mv^2=\frac{1}{2}m\cdot 350^2=m\cdot 61,250[Joule][/itex]
##\frac{61,250}{4.186}=14,632[cal]\rightarrow E=m\cdot 14,632[cal]##
##Q=E=m\cdot 14,632[cal]=m\cdot 0.031\cdot \Delta T##
And it gets a huge temperature