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the gravitational potential is set to be 0 at a distance of infinity. 

= 2πr² + πd x height (= area of the 2 circle at either end + area of rectangular surface around the cylinder)

For Berkely, there is not a world with physical objects that is external to us. The sense data we perceive with our sense organs are bundled together as 'ideas'. For example the idea 'chair' is a bundle o...

Collision theory states that for a reaction to occur, particles must collide with sufficient energy, sometimes in specific orientation. The minimum amount of energy needed for a reaction to occur is calle...

Mitosis is a form of cell division that produces genetically identical cells and it includes 4 main stages. Before Mitosis can occur the cell undergoes Interphase, in which DNA and organelles are replicat...