[填空题]
A bug on the surface of a pond wdl i0ib)al+.is observed to move up and down a totahthujbxj +9jb-9y 6-tl vertical distance of 6.0 cm, from the lowest to the highest point, as a wave passes. I- b uthjt yx699-hjjb+f the ripples decrease to 4.5 cm, by what factor does the bug’s maximum KE change?
