Gravitational field strength, g
A definition for gravitational fields is a region in which objects with mass experience a force.
The strength of a gravitational field is defined as the force, F, acting on a unit mass, m, in the field which in an equation is:
g= F/m
Symbol: g. Units: newtons per kilogram, Nkg-¹, which is the same as ms-².
Uniform field
In a uniform field, g will remain constant. You can consider the Earth’s gravitational field to be uniform as long as you don’t move more than a few kilometres above the surface of the Earth. On the surface of the Earth, g = 9.81Nkg-¹, of course.
Newton was the first person to fully explain gravitational fields. He came up with the following equation for field strength in a radial field:
g = Gm/r²
where
g = field strength
G = the universal gravitational constant, value 6.7x10-11 Nkg-²m²
m = the mass of the object in the field
r = the separation between the centres of the mass and the object causing the field.
2006-09-08 04:33:53
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answer #1
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answered by Anonymous
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The derived unit for gravitational field strength is N (newton), being the unit for force. The base unit equivalent kg m / s^2 (kilogram meters per second per second)
2006-09-08 11:06:47
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answer #2
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answered by Graham I 6
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What wrong with you kids nowadays go read Ur book lol
(g )= Gravitational field strength (newton)/(kilogram)
N/Kg= (kg·m/s²)/Kg
=
m/s² (Base units)
(Well I think? I am getting old)
2006-09-08 10:59:35
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answer #3
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answered by Sons of Light 2
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Find the answer in your Physics book
2006-09-08 10:53:52
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answer #4
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answered by Anonymous
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Do I look like a person that gives a F@@K?
2006-09-08 15:36:33
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answer #5
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answered by Gobansoar 2
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3 wave over 4x squared....maybe? :o)
2006-09-08 10:56:30
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answer #6
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answered by GiantDave 1
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fg
2014-08-31 22:06:19
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answer #7
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answered by ? 1
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What?
2006-09-08 10:58:34
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answer #8
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answered by clare s 2
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