求老师解答：如图所示是拖动纸带时
求老师解答：如图所示是拖动纸带时
| 如图所示是拖动纸带时打点计时器打出的一条纸带,A、B、C、D、E为在纸带上所选的计数点,相邻计数点 间的时间间隔为0.1 s,试求打点计时器打下B、C、D各点时的瞬时速度：v B =____m/s,v C =____m/s,V D =___m/s． |
 |
可能相似的问题
你能帮帮他们吗
精彩回答
-
Mr Green put a lot of ______ (努力)into arranging the concert.
1年前
-
How many ____ can you see? A. triangle B. triangles C. a triangle
1年前
-
Hawaii is in ______. It's very beautiful.
1年前
-
他的航班将在一小时后起飞。 His flight is_________in an hour.
1年前
-
that water trunk its is drinking with elephant (.) 用所给的单词排序，连词成句。
1年前