发布时间:2025-01-31 14:14:35
15楼如果按每层3米算的话,掉下来的高度应该在14*3稍多些,我们按14层的高度加15楼1米的阳台算吧就是43米
h=1/2gt^2
43=1/2*9.8*t^2
最后得出2.96秒
崖柏手串怎么盘,每天盘多长时间,放多长时间,求大神给详细的方法
2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35我今年15岁每天都会激烈对抗高运动量的打篮球56个多小时这样会不会影响身体的生长
2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35 2025-01-31 14:14:35我家楼宇对讲机坏了4线的红绿白黑如何接线可以在楼下按门铃就开门
2025-01-31 14:14:35