问题
填空题
长江三峡水库建成后，正常蓄水海拔高度为175m，总库容量为393亿立方米，那么在水面下90m深处水产生的压强是______Pa（g=10N/kg）．
答案
由题知，h=90m，
∴p=ρgh=1×103kg/m3×10N/kg×90m=9×105Pa．
故答案为：9×105．
搜题请搜索小程序“爱下问搜题”
长江三峡水库建成后，正常蓄水海拔高度为175m，总库容量为393亿立方米，那么在水面下90m深处水产生的压强是______Pa（g=10N/kg）．
由题知，h=90m，
∴p=ρgh=1×103kg/m3×10N/kg×90m=9×105Pa．
故答案为：9×105．
I went to a group activity, “Sensitivity Sunday”， which was to make us more ___ the problems faced by disabled people. We were asked to “ ____ a disability” for several hours one Sunday. Some members，____ chose to use wheelchairs. Others wore soundblocking earplugs(耳塞)or blindfolds(眼罩)． Just sitting in the wheelchair was a ___ experience. I had never considered before how ____ it would be to use one. As soon as I sat down, my ____ made the chair begin to roll. Its wheels were not ____. Then I wondered where to put my ____. It took me quite a while to get the metal footrest into ____. I took my first uneasy look at what was to be my only means of ____ for several hours. For disabled people, “adopting a wheelchair” is not a temporary(临时的) ____. I tried to find a ____ position and thought it might be restful, ____ kind of nice, to be ____ around for a while. Looking around, I ____ I would have to handle the thing myself! My hands started to ache as I ___ the heavy metal wheels. I came to know that controlling the ____ of the wheelchair as not going to be a(n)____ task. My wheelchair experiment was soon ___. It made a deep impression on me. A few hours of “disability” gave me only a taste of the ____， both physical and mental, that disabled people must overcome.
|