PHYS 1010Q Lecture Notes - Lecture 11: Mass, Equivalence Principle, Asteroid Family
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Lecture 11 g decreases with elevation, the gravitational field, satellites and planets, The gravitational pull (fg) here on the surface of the earth gets smaller as we move away from the surface. Thus the girl"s weight (but not her mass) decreases as she climbs up the ladder. We can look at gravity in a different way than just a force acting ver a distance. We could instead consider the moon as interacting with the gravitational eld of the earth. Any massive body is the source of a gravitational eld. We will use a similar idea for the electric and magnetic elds. Consider the motion of a satellite with a mass m in a circular orbit of radius r about an object of mass m. the period of the orbit is t. by substituting newton"s law of gravity.
