Which choice is an example of kinetic energy changing into potential energy? A person climbs to the top of a slide.
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A breeze moves a flag.
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A television is turned on.
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A tree branch falls to the ground.
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CLEAR ALL

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

What are some natural processes that represent physical and chemical changes?