[问答题]
A block of mass m is supported by two identgfm2h: mf8 )a(brbx6y ical parallel5; g,;mhzx/(w ;vbzou5t tdl7+sasx h vertical springs, each with spring stiffness constant k (Fig. 11x t+o,hz/;sa h;ld(57 ;btwsxg5mzvu–49). What will be the frequency of vibration?
