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could you elaborate on how this data was tabulated? since you mention free fall, no other forces except for gravity should be acting on the object

hm.. i would still question the energy efficiency of having a purifier of that sort in a house (you need to heat the process) but I've never done this project before so i don't have solid prove. would just advice you on looking at the ratio of energy used to power the process to energy...

Any industrial process that requires heat already uses a huge amount of energy. there are also factories and refineries that already implement ways to recycle energy leakage in the process of creating the heat, not in terms of the light it produces, but in terms of lost heat, in the form of...

bump? 70+ views and no answers...? come on guys a little help please..thanks again

like rajini has said, ice melts as you slide against it. take into consideration the water formed as ice melts, it would decrease the friction between the ice and the object. there would still be friction between ice and an object or you would be able to slide indefinitly

hey guys, i was wondering if there was a formula to measure the strength of a magnet in relation to its size, and what else is needed to be known before such a value can be computed. e.g. its shape, let's say a bar magnet(you have my apology if i have posted in the wrong forum, but I'm...