Which equation best describes the law of conservation of momentum? pi= Pf
pi> Pf
pi< Pf
P+ Pf = 0​

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I’m good with pshycology

Hellosubatomic particles  are  particles  that are smaller than the atom. protons, neutrons, and electrons are the three mainsubatomic particles  found in an atom. protons have a positive (+)  charge. an easy way to remember this is to remember that both neutron and no  electrical charge  start with the letter "n."have a nice day