All of the earth's motion is completely determined by gravity: the gravitational pull on the earth by the sun (and the larger outer planets), the gravitational pull of the Milky Way galaxy on the sun, the gravitational pull of our local cluster on the Milky Way galaxy and so on, up the ladder.
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earths rotation around the sun
-- Gravity causes the vertical component of projectile motion to vary according to the local acceleration of gravity. -- Gravity has no effect at all on the horizontal component of projectile motion.
Earth is held in elliptical orbit around the sun by gravity. It's motion can be thought of as due to a combination of gravity and inertia.
The moons gravity 'pulls' the earths water creating a 'tide.'
In general, it will have the effect of speeding such an object up.
Gravity is completely responsible for planetary motion. The shape and size of each orbit, and the speed of the planet at every point in its orbit, taken along with the mass of the sun, are completely determined by the behavior of gravity.
The centre of the earth is solid iron, however the centre of the earths gravitational pull changes, due to the movement of the moon, which has an effect on the earths gravity.
One result of convection currents in Earth's outer core is the generation of Earth's magnetic field. As the hot, molten iron in the outer core moves in a circular motion due to convection currents, it creates a dynamo effect that generates the magnetic field.
Earths gravity acts on everything from its center of gravity to everything else's center of gravity.
The mass of a projectile has no direct effect on its horizontal motion in projectile motion. However, a heavier mass may affect the projectile's vertical motion by influencing factors such as initial velocity, air resistance, and gravity, which can impact its trajectory.
Gravity affects the motion of objects by pulling them towards the center of the Earth. This force causes objects to accelerate as they fall towards the ground. The acceleration due to gravity is a constant value on Earth, which is approximately 9.81 m/s^2.