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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why are red, green, and blue called the additive primary colors?,
because they are combined in the right proportion they form white
colors, and canbe combined to form any other coor in the spectrum of rainbow.
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