A guidewire is manoeuvred by magnets through a life-sized model of arteries in the brain. The nodules on the arteries represent aneurysms with a high risk of rupture that can cause a stroke. (Courtesy ...
1.1 What is friction? Take this everyday example: when a coffee mug rests on a flat table, the kinetic frictional force is zero. There is no force trying to move the mug across the table, so there is ...
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