Answer Posted / david thiel
The earth-moon system has a center a gravity that is inside
the sphere of the Earth.Because of this the Earth wobbles
when it rotates on it's axis (the Earth day ). On the moon
side of this system it is the moons gravitational pull that
causes the tidal bulge toward it, but it is centripical
force because the side away from the moon is spining
further away and faster from the center of rotation that
causes the tidal bulge on the side away from the moon.
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