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because of the sun,moon,gravity and the rotation

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Q: Why are there high and low tides every twelve hours?
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Related questions

How many high and low tides occur in one day?

6. There are 12 hours between high tides and low tides occur "exactly" halfway between them.


Where does high tides occur?

High tides ocurr every where, on every sea coast harbour etc


What does the moon do to the earth every 6 hours?

Nothing, If you Are asking about tides then it is the earths spinning that casuses tides to change ruffly every 6 hours (as the moon shifts so does high and low tide). But the tides themselves are caused by the effect of the sun's and moons gravity. Hope this helps


When boating on coastal water it is important to be aware of the tides.if high tide is at noon when can you expect the next low tide?

There are approximately 4 tides per day...two high, and two low. Actually, there are 4 tides every 24 hours and 50 minutes, so high tides occur every 12 hours and 25 minutes. Low tides occur in the alternate 12 hours and 25 minutes. If you have a high tide at noon, you could expect the next low tide 6 hours and 12.5 minutes later.


High tides last about hours?

6 hours


Why do you have 2 high and low tides every 24 hours?

Because the moon keeps moving and it has a gravitatinonal pull


Do tides occur every eleven hours at the same spot?

No, they do not. It's a lot more complicated than that, and 11 hours is not really even close to being right. The time between subsequent high tides (or low tides) in most places is about 12 hours and 25 minutes.


How many many tides per day?

2


Why do the moon have high and low tides every 24 hours?

It is not quite 24 hours, as it's mainly related to the sun's gravity, but also to the moon's.


How long passing between high tides?

Usually the tides last about 6 to 7 hours then they become low tide or high.


How often do high tides shift to low tides?

6 hours between peaks


Why are high and low tides in two consecutive days?

Actually, there are TWO high tides and TWO low tides, on almost every day.