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Like charges repel and different charges attract, i.e. charges feel an electromagnetic (EM) force. Electrons (fundamental particles that 'orbit' around the nuclei of atoms) carry a negati...

The reason we feel weight isn't because gravity is pulling us down; it's actually because we can feel our body being "squished". When we're on Earth, gravity is trying to pull us down through th...

First I think it is useful to look at the definition of a geostationary satellite to find out why it appears to stay in the same place above the earths surface. It is an object that is above the equator, ...

Using conservation of energy i.e calculating the total kinetic and potential energy at a trivial point, then solving for the velocity at the point in question by knowing the potential energy of the partic...

Applying the law of conversation of energy, the gravitational potential energy (GPE) stored by the rock before falling is transformed into other types of energy as it falls. Without any external forces ac...