Question
A 3.00x10^-3kg lead bullet travels at a speed of 2.40x10^2m/s and hits a wooden post. if half the heat energy generated remains with the bullet, what is the increase in temperature of the embedded bullet?(ci=1.28x10^2 j/kg degrees C
Answers
Compute the kinetic energy of the bullet. Take half of that value as heat added to the bullet, Q.
Q = (1/2) M V^2
From that Q and the specific heat C and mass, compute the temperature rise, delta T.
delta T = Q /(M C) = (1/2) V^2/C
Q = (1/2) M V^2
From that Q and the specific heat C and mass, compute the temperature rise, delta T.
delta T = Q /(M C) = (1/2) V^2/C
225
Related Questions
As part of a forensic test, a 5.0g lead bullet is fired into a fence post. the initial speed of the...
A 3.00x10^-3 kg lead bullet enters a target with a speed of 2.00x10^2 m/s and comes to rest within t...
A 5.00g lead bullet is fired into a wooden fence post. The initial speed of the bullet is 250m/s, an...
A 3.00 gram lead bullet travels at a speed of 240 m/s and hits a wooden post. If half the heat energ...