- #1
Vitani11
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Homework Statement
I know the moon does. I know it is because tidal forces fall off as 1/r3. But why? Mathematically, I mean.
Homework Equations
F = GMm/r2
The Attempt at a Solution
None
In what way does this statement not contain both the question and the answer?Vitani11 said:I know the moon does. I know it is because tidal forces fall off as 1/r3. But why? Mathematically, I mean.
Did you try a search on Tidal Force? Even the Wikipedia article on Tidal Force shows a short derivation (granted it's for the locations lying along the line joining the centers of the two interacting bodies, but it avoids the vector math required for the more general solution for points located anywhere on the surface of the smaller body).Vitani11 said:I should have been more specific. How do you get from F = GMm/r2 to an equation for tides that has a 1/r3 in it?
Vitani11 said:I should have been more specific. How do you get from F = GMm/r2 to an equation for tides that has a 1/r3 in it?
The moon has a greater effect on the tides due to its closer proximity to Earth and its stronger gravitational pull.
The sun's position does have an impact on tides, but it is not as significant as the moon's. When the sun and moon align, their gravitational forces combine, resulting in higher high tides and lower low tides, known as spring tides.
The Earth rotates through two tidal bulges created by the gravitational pull of the moon and sun. As a result, any given location experiences two high tides and two low tides each day.
During a full moon or new moon, the sun, moon, and Earth are aligned, resulting in the strongest gravitational pull and the highest high tides and lowest low tides, known as spring tides. Quarter moons create neap tides, which are weaker due to the sun and moon's gravitational forces working against each other.
Yes, the side of Earth facing the moon experiences the highest high tides and lowest low tides, while the opposite side experiences the lowest high tides and highest low tides. This is due to the moon's gravitational pull being stronger on the side facing it.