继续刚才数学题,
题目
继续刚才数学题,
第一题：A 17.6-gram sample of metal is placed in a graduate cylinder containing 10.0cm^3 of water.If the water lvl rises to 12.20cm^3,waht is the density of the metal?,我只想看我做的对不对,DENSITY不知道公式.
第二题：A container of gas with a pressure of 101 kPa has a volume of 324cm^3 and a mas of 4.00g.If the pressure is increased to 404kPa,what is the density of the gas?Pressure and volume are inversely proportional?这题的DENSITY 又怎么算?以前化学没学好
我自己的中文翻译也不好呀
答案
能用汉语不,英语不好 +_+
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点