[填空题]
Two earthquake waves of the same frequency e hn 6oizs,/q;trav a*hls 4,u3tsoj 7 j-mgg k19nrjqo3 e*yaqz;,el through the same portion of the Ea3he4sj ,3m1ja gq j9gs;y urza7tn, lo-o*kq*rth, but one is carrying twice the energy. What is the ratio of the amplitudes of the two waves?