登入後可作答並查看完整詳解
R2R1\sqrt{\frac{R_2}{R_1}}R1R2
M1R1M2R2\sqrt{\frac{M_1 R_1}{M_2 R_2}}M2R2M1R1
M2R2M1R1\sqrt{\frac{M_2 R_2}{M_1 R_1}}M1R1M2R2
M1R2M2R1\sqrt{\frac{M_1 R_2}{M_2 R_1}}M2R1M1R2