Answer:
2500 and kg its is very easy do with method
Answer:
Definition. Nuclear physics is the study of the protons and neutrons at the centre of an atom and the interactions that hold them together in a space just a few femtometres (10-15 metres) across. Example nuclear reactions include radioactive decay, fission, the break-up of a nucleus, and fusion, the merging of nuclei.
Explanation:
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matter is a solid liquid or gas , a atom is a basic unit of a chemical element and a molecule is a group of atoms together
A seesaw remains stationary when two students of equal weight sit on the ends
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