[填空题]
(a) The tube of a mercury thermometekf by *k2wyv0+rtge13 hgwn zob z,).m,f* nw);yljg6o has an inside diameter of 0.140 mm. The bulb has a volume of 0.2w1gofomb,6 hy z3,je )nz *.;glgn)tw 55 $cm^3$ 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.