GMm/R^2 - mg 解出周期 T^2=(2*3.14)^2R/(GM/R^2-g)T = 根号下 ((2*3.14)^2R/(GM/R^2-g))GMm/R^2 - mg 解出周期 T^2=(2*3.14)^2R/(GM/R^2-g)T = 根号下 ((2*3.14)^2R/(GM/R^2-g))
GMm/R^2 - mg 解出周期 T^2=(2*3.14)^2R/(GM/R^2-g)T = 根号下 ((2*3.14)^2R/(GM/R^2-g))
GMm/R^2 - mg 解出周期 T^2=(2*3.14)^2R/(GM/R^2-g)T = 根号下 ((2*3.14)^2R/(GM/R^2-g))