Question $1(1$ point$)$ Listen bar A horizontal solid round titanium bar is fixed at one and with a gap at other. Neglect the weight of the bar. What is the change in temperature required to close the gap? Answer in degrees C$,$ don't include units, at least $3$ sig figs. To $=11$ oC Tf $=45$ oC Round bar, d $=23$ mm Lo $=1\mathrm{.}45$ m Gap $=0\mathrm{.}100$ mm