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What is the change to the quark composition of a nucleus that takes place during β⁺ decay?
What is the charge, in terms of the elementary charge e, on a charm quark?
Which row gives the correct classification of protons, electrons and neutrinos?
Which unit is equivalent to the coulomb?
Which row shows a quantity and an incorrect unit?
Two forces of equal magnitude are represented by two coplanar vectors. One is directed towards the east and the other…