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g, the force due to gravity, does not vary according to longitude. It does vary according to the mass of material below that location. Thus, a site close to a mountain will have its gravity modified by the mass of the root of the mountain. If the mountain were made of sedimentary rock, the g would be lower. If the mountain were made of basalt, then g would be slightly greater. There are gravity maps available of this quantity for the whole world. In my country, g varies by about 1 part per thousand - which is about the legal tolerance allowed for mass measurements in trade, so the problem is not trivial.

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What is number of g-force that would kill a human?

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Changing the length or mass of a pendulum does not affect the value of acceleration due to gravity (g). The period of a pendulum depends on the length of the pendulum and not on its mass. The formula for the period of a pendulum is T = 2π√(L/g), where T is the period, L is the length of the pendulum, and g is the acceleration due to gravity.


What two factors does the strength of gravity depends?

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