用物理天平称量100颗同样规格的铅粒,其质量为,则每颗铅粒的质量为:https://p.ananas.chaoxing.com/star3/origin/8c554c73fe0d92a93f230798eaf281c9.pnghttps://p.ananas.chaoxing.com/star3/origin/af98dbc6313dd89df590177e1b49db72.png
举一反三
- 中国大学MOOC: 用物理天平称量100颗同样规格的铅粒，其质量为M=（114.57±0.05）g，则每颗铅粒的质量m为（ ）：
- (1) 设,且当时,则函数 .https://p.ananas.chaoxing.com/star3/origin/1df4e5fa778b4917e841b8db8167c4fd.pnghttps://p.ananas.chaoxing.com/star3/origin/1df2c0c8afdc2620e06142ca249383d3.pnghttps://p.ananas.chaoxing.com/star3/origin/2dbeeae137681811236ccf243cfc0188.pnghttps://p.ananas.chaoxing.com/star3/origin/8443294c110ad3b06d5a640d6a3c7ade.png
- 使,,,的值为https://p.ananas.chaoxing.com/star3/origin/7a71315286a845cd71d58a43d172d70e.pnghttps://p.ananas.chaoxing.com/star3/origin/82992dfd55feeb0dbc3accfc460e8e6f.pnghttps://p.ananas.chaoxing.com/star3/origin/d072c844f7cfa56460a42ea3424f0622.pnghttps://p.ananas.chaoxing.com/star3/origin/d03cce0f654cef79e0f8e9e14f223092.png
- 设是圆,则https://p.ananas.chaoxing.com/star3/origin/d8b5edc9a2457c461a3685877f8606ab.pnghttps://p.ananas.chaoxing.com/star3/origin/5f3c1256fa1597901980dc868dfb57f7.pnghttps://p.ananas.chaoxing.com/star3/origin/1932e2a8e9452d4d6f94177a0ca40384.pnghttps://p.ananas.chaoxing.com/star3/origin/5785decddcc5b175015fc7c46d4d8405.png
- 设,,矩阵,则秩 ____。https://p.ananas.chaoxing.com/star3/origin/37ef575fe498777db654afddca62fe2c.pnghttps://p.ananas.chaoxing.com/star3/origin/a615458f7dcae581d0fff21cde15a403.pnghttps://p.ananas.chaoxing.com/star3/origin/290ba9cd94f47cfdfb6c2f491dc6ba09.pnghttps://p.ananas.chaoxing.com/star3/origin/4552fd27a3592e03f9b28737ec534441.png