连同载重共2000N的气球在竖直方向上匀速下降,他受到的空气浮力为1850N,则他在匀速下降时受到的空气阻力是( )若要使气球上升,则要从气球中抛掉( )N 的重物(气球所受浮力与阻力均不变)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/28 08:03:57
![连同载重共2000N的气球在竖直方向上匀速下降,他受到的空气浮力为1850N,则他在匀速下降时受到的空气阻力是( )若要使气球上升,则要从气球中抛掉( )N 的重物(气球所受浮力与阻力均不变)](/uploads/image/z/5201965-37-5.jpg?t=%E8%BF%9E%E5%90%8C%E8%BD%BD%E9%87%8D%E5%85%B12000N%E7%9A%84%E6%B0%94%E7%90%83%E5%9C%A8%E7%AB%96%E7%9B%B4%E6%96%B9%E5%90%91%E4%B8%8A%E5%8C%80%E9%80%9F%E4%B8%8B%E9%99%8D%2C%E4%BB%96%E5%8F%97%E5%88%B0%E7%9A%84%E7%A9%BA%E6%B0%94%E6%B5%AE%E5%8A%9B%E4%B8%BA1850N%2C%E5%88%99%E4%BB%96%E5%9C%A8%E5%8C%80%E9%80%9F%E4%B8%8B%E9%99%8D%E6%97%B6%E5%8F%97%E5%88%B0%E7%9A%84%E7%A9%BA%E6%B0%94%E9%98%BB%E5%8A%9B%E6%98%AF%EF%BC%88+%29%E8%8B%A5%E8%A6%81%E4%BD%BF%E6%B0%94%E7%90%83%E4%B8%8A%E5%8D%87%2C%E5%88%99%E8%A6%81%E4%BB%8E%E6%B0%94%E7%90%83%E4%B8%AD%E6%8A%9B%E6%8E%89%28+%29N+%E7%9A%84%E9%87%8D%E7%89%A9%28%E6%B0%94%E7%90%83%E6%89%80%E5%8F%97%E6%B5%AE%E5%8A%9B%E4%B8%8E%E9%98%BB%E5%8A%9B%E5%9D%87%E4%B8%8D%E5%8F%98%29)
xVRi}VJ@Ljks!^;a [e$$`,7f+_!Ѣjk֥(z>}t[{-r|tx,:gհ┒|:u7tLc{-{==b! |ԗehn:y#/6Yw33v]=_h4Pl}Bz-
!;5}W
SGy*[~xomo=o`9_ 5ڨg@ez]hk