A physics student is standing on an icy pond in her ice skates. The ice has very little friction and she needs to move to the north shore of the pond, and is having trouble moving. She has a very heavy physics book in her arms and decides to throw it parallel to the ice. Which way should she throw it to enable her to get closer to the north shore, and which physics principle explains what happens after the book is thrown?

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The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.

Answerigneous bedrock of the oceanic crust;

Cardiac muscle causes movement in the bone.