electrons
Polio is transferred from what human to another by fecal-oral ingestion.
sliding friction is like sliding a desk without wheels across a floor since its sliding and if there a large amount of weight involved it will be harter to over come the friction , rooling friction is like a skateboard rooling down the street for rooling friction the object NEEDS to have wheels or it wouldn't be rooling friction,and fluid friction is like droping a ball through air since air has water particles and counts for fluid friction.
There are three ways in which heat can be transferred from one surface to another. These three ways are conduction, convection and radiation.
friction
It produces chemical reactions n makes you make out with people!
That is conduction.
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The transfer of electrons from one object to another by direct contact is charging by conduction. The transfer of electrons form one uncharged object to another by rubbing the objects together is charging by friction.
No. There will always be some lost to air resistance, friction and heat.
Ionic bond