what do you think you know about physics, physics is the study of matter under the effect of energy, but does this includes solid states bodies, atoms at ground states, object at microscopic size or object moving faster than light? these and more is what prompt me to ask again what is physics?
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what are the charges and relative masses of the three main subatomic particles
electron
charge negative, -1, mass 9.11 ×10-34kg
proton,
charge +1 and mass= 1.667 ×10-27kg
neutron ,
no charge mass slightly massive than protons
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