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题1估一估，你大拇指指甲上所受的大气压力大约为多大？相当于1根鸡毛重？一支钢笔重？还是几斤酒重？解人体大拇指指甲的面积约为1厘米2，大拇指所受的大气压强约为ρ=1．01×105帕，则大拇指上所受的压力约为：厂一POS。1．ofxlof帕xlx10－‘米’。10牛．小小一个大拇指表面
Question 1 Estimated, how big is the atmospheric pressure on your thumb nails? The equivalent of a chicken weight? A pen heavy? Or a few kilograms of wine? The area of thumb nails is about 1 cm2. The atmospheric pressure of the thumb is about ρ=1.01×105 Pa. Then the pressure on the thumb is about: a factory POS. 1. Ofxlof par xlx10-’m’. 10 cattle. Little one thumb surface