## Essential University Physics: Volume 1 (3rd Edition)

We use a known equation and known constants to find: $t = \frac{\rho hL}{.1I}\\t=\frac{(917)(2.5)(334,000)}{.1\times300}= .81\ years$ We compare: $t = \frac{\rho hL}{.1I}\\t=\frac{(917)(2.5)(334,000)}{.5\times300}= .162 \ years$ We see that the carbon black causes the ice to melt, for the ice with the carbon black melts faster.