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Physics
Multiple Choice Question with Only One Choice Correct A ball is dropped from a height of 10 m. It is embedded 1 m in sand and stops. In this process (a) only momentum is conserved (b) only kinetic energy is conserved (c) both momentum and kinetic energy are conserved (d) neither momentum nor kinetic energy is conserved
Chemistry
Multiple Choice Question Many elements have nonintegral atomic masses because (a) they have isotopes (b) their isotopes have non - integral masses (c) their isotopes have different masses (d) the constituents, neutrons, protons and electrons combine to give fractional masses
Mathematics
Find x if log_{x + 1} (x² - 3x + 1) = 1