Teach: Gravitation and orbits

AimstextConsiderationsIt"s worth mentioning before starting how we have 2 ways that mass impacts on the universe, it defines the acceleration and weight, two apparently totally different things, Inertial mass and gravitational mass. This makes gravitational acceleration the same as the field strength. Students probably won"t see why this is interesting, they just accept that they are the same however charge is responsible...

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