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Physics 25 Online
OpenStudy (anonymous):

http://www.alibaba.com/product-gs/357798072/Five_function_Hydraulic_Lifting_Bed/showimage.html?newId=361680609&pn=10&pt=10&t=12&cids= exactly just like this bed..how the hydraulics work...

OpenStudy (anonymous):

The principle is that pressure is transmitted isotropically without any loss. So if there are two arms of a hydraulic lift, having areas a1 and a2, and we apply forces f1, f2 on them, we get f1/a1 = f2/a2

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