[填空题]
(a) Estimate the rms speed of an ag aks/y(x/b mofza9jo 2rf4, 4 (rwrh:mino acid whose molecular mass is ef/ u+x+a3k cs89 u in a liv+uk ea3cx/ f+sing cell at 37 $^{\circ} $ C. m/s
(b) What would be the rms speed of a protein of molecular mass 50,000 u at 37 $^{\circ} $ C? m/s