Part A

A hot iron horseshoe $($mass $=0\mathrm{.}35kg),$ just forged, is dropped into $1\mathrm{.}50L$ of water in a $0\mathrm{.}35kg$ iron pot initially at $25\mathrm{.}0C.$

If the final equilibrium temperature is $30\mathrm{.}0C,$ estimate the initial temperature of the hot horseshoe.

Express your answer using two significant figures.

$T=$

$C$