Answer:
30 m/s
Explanation:
Velocity is
since we know that the initial velocity is 0, and the acceleration is
then we also know that time is 3 seconds it follows that: 
Answer:
The distance between two objects
Explanation:
Depending on how far away or how close two objects are will affect the gravity.
There are 171 moons, or natural satellites, orbiting the planets in our solar system; Earth, Mars, Jupiter, Saturn, Uranus, and Neptune have 1, 2, 66, 62, 27, and 13 moons, respectively. The following is a list of some of the major planetary moons, including those of the dwarf planet Pluto.
Out of them, Most of the large moons in the Solar System have prograde orbits. This means that they orbit their planet in the same direction as the planet is rotating.
Why do all the planets orbit in the same direction?
The same reason (almost) all of them rotate in the same direction: because of the conservation of angular momentum. Before a star and its planets exist, there's just a cloud of disorganized gas and small molecules. The Solar System formed from such a cloud around 4.6 billion years ago.
To learn more about Large moons here
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U need a positive and a negative i will say b cause electron r negative and protons are positive