what will be the potential energy if :-
a) mass of a body is doubled without changing its position and gravity
b) a body is taken to moon regardless of its height
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the correct answer is PE is doubled
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The process of deriving large crystals of pure substances from their solutions is known as crystallisation. It is a physical change. Crystals of salt are obtained by the evaporation of sea water. ... This mixture when filtered and allowed to cool produces crystals of copper sulphate.
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