Answer:
Any situation that has a path that stops at the same position that it started from has a displacement of zero.
Explanation:
Dark energy and dark matter seem over analyzed, although they are no different than gravity and wind. Dark energy can be the pulling caused by black holes, stars, and large planets. Dark matter also is just the effect of cosmic dust and debris pushed from explosions but also pulling caused by distant gravitational bodies.
Answer:
Noble gases.
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The relative abundance and the mass number usually they give these to you. They give me both these values in my chemistry class so i just multiply add the products and get my answer
Answer:
protons
Explanation:
the number of protons in 1 atom determine the identity
