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There is a high tide on the opposite side of earth to the high tide pulled by the moon. What force causes this? Could it be that both earth and moon revolve around a common centre of gravity like a fat man and a small woman spinning round in an eightsome reel, causing centrifugal force to throw man's tail of jacket out?

2007-05-11 03:33:53 · 7 answers · asked by Anonymous in Science & Mathematics Astronomy & Space

7 answers

You have the right idea about the moon's gravity, you just need to follow through on that line of thought. The moon pulls on the water on the moon's side of the earth, but it also pulls on the earth which moves the earth slightly closer to the moon than the water on the opposite of the moon. Thus, there is a bulge on the moon's side, and a smaller bulge directly opposite. As the earth rotates, the point at the high bulge then turns under a low point, then under the high point directly opposite the moon.

Because the moon, too, is in motion around the earth the timings between highs and lows can get complicated.

Oh, yes, there is also the effect of the sun, which can cause the high tides to be a bit higher than expected and the lows lower.

HTH

Charles

2007-05-11 03:48:06 · answer #1 · answered by Charles 6 · 2 0

The Moon's gravity acts on the whole mass of the Earth, pulling the side nearest to the Moon that little bit more than the centre, which is in turn pulled a little more than the side facing away from the Moon.

The confusion comes from considering the Earth's centre as the fixed point, when in reality the gravity acts right the way though the Earth. The two bulges occur because the entire planet is stretched.

2007-05-11 04:00:02 · answer #2 · answered by Jason T 7 · 0 0

Sort of...when high tide is on the opposite side of where the moon is, the earth's center is closer to the moon than is the water on the surface. The diference in distance accounts for different accelerations due to gravity

2007-05-11 03:51:32 · answer #3 · answered by Gene 7 · 1 0

Of each and every of the psuedo sciences astrology makes the main experience, in basic terms based on the gravitational forces you suggested. If the moon can improve a tide 50 to 60 ft what variety of result could that tension have on human microchemistry? The stats approximately weird and wonderful stuff and ers is repeated adequate to lend credence to the thought. So if the moon could have an result, does no longer the impression of different gravitational forces even have some result on the microchemistry that occurs in the time of concept? perhaps no longer stars yet what approximately jupitur or saturn.

2016-11-27 02:47:52 · answer #4 · answered by ? 4 · 0 0

If you think of it like this the water is pulled up towards the moon the water on the sides is lowered as that is where the water is pulled from. on the opposite side the water cannot be pulled from, as the earth is in the way. Using arbitrary numbers water opposite side to moon at 0 metres, water at side -1 metre, water same side as moon +2 metres. so tide towards the moon is higher than tide on opposite side

2007-05-11 03:50:06 · answer #5 · answered by Easy Peasy 5 · 2 1

there are actually 2 for the moon..the other is on the opposite point of the earth:P

2007-05-11 03:37:38 · answer #6 · answered by Bladvak 3 · 1 0

There are actually two moons. The second one is the home to the Scientologists.

2007-05-11 03:43:23 · answer #7 · answered by Anonymous · 0 1

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