photo

B A


自 2015 起处于活动状态

Followers: 0   Following: 0

消息

统计学

  • Thankful Level 1

查看徽章

Feeds

排序方式:

提问


How can i solve this?
How can I solved this....:( Please help ... The motion of two bodies under mutual gravitational attraction is described by the ...

10 years 前 | 1 个回答 | 0

1

个回答