[填空题]
(a) The tube of a mercuryb(-xk yris+ov, n fkeeh3348f th:o*v:g k(kzi hermometer has an inside diameter of 0.140 mm. The bulb havi :gz*o(hkk :s a volume of 0.255 $cm^3$ How far will the thread of mercury move when the temperature changes from 11.5 $^{\circ} $ C to 33.0 $^{\circ} $ C? Take into account expansion of the Pyrex glass. cm(b) Determine a formula for the length of the mercury column in terms of relevant variables. Ignore tube volume compared to bulb volume.
