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When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?
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Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space
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When the ionic compound nabr dissolves in water, brโ ions are pulled into solution by the attraction between what two particles? a. the na+ and brโ ions b. the na+ ion and the negative end of a water molecule c. the brโ ion and the positive end of a water molecule d. the brโ ion and the negative end of a water molecule
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