发布时间:2025-01-31 14:15:26
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 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26江西省砌一立方轻质加气块所需人工费多少200240600的总量大概在3000立方左右
2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26 2025-01-31 14:15:26