人教版高中物理第一册第六章“万有引力”的第四节中说可以计算出地球的质量是5.98×1024kg,可是在第五节中求地球的第一宇宙速度时又用到了地球的质量,这次代入的却是5.89×1024kg,两者相距9×1022kg之大),这令师生感到非常的诧异,地球的质量到底是多少?(下转第26页)(上接第19 In the fourth quarter of the sixth edition of the People’s Education High School Physics Booklet “The Gravitation”, it can be calculated that the mass of the Earth is 5.98×1024 kg. However, in the fifth quarter, the earth’s first cosmic velocity is used again. Quality, this time into the 5.89 × 1024kg, the distance between the two 9 × 1022kg large, which teachers and students feel very surprised, what is the quality of the earth in the end? (Down on page 26) (continued from the 19th