How is it that the moon can affect the 352 quintillion gallons of water in the ocean, but not affect us?

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The moon depending on where it is at your time of day can affect whether or not there’s high or low tides. Basically moving all of the water in the ocean, at least that’s how I think. But how come it doesn’t make us feel lighter or heavier throughout the day? Or just seem to affect anything else

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Anonymous 0 Comments

Like tmahfan said, because gravitational attraction force is proportional to BOTH masses.

Force = [(Gconstant) x (mass of thing) x (mass of other thing)] / (distance between the things)^(2)

The ocean and the moon are both very heavy, so there is a fairly strong attraction between them. You are lighter than the ocean, so the force on you is much much smaller.

But the important part is the moon DOES affect you too. You are indeed a bit lighter when the moon is overhead, and a bit heavier when it’s not. In fact, since it’s linear, t**he moon’s pull on you is weaker by the same factor that the ocean is heavier than you.** Which is trillions of times, probably more. But the force on you *is* there. If you had a sensitive enough scale, you could measure it and see your weight going up and down as the moon rose and sank above you. But only by like 0.001 grams, since you don’t weigh as much as the moon or the oceans.

Actually, you could use the equation above and your weight, google the mass of the moon and how far away it is, and plug those all in and see for yourself exactly how much lighter you are with the moon overhead!

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