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Parallel light rays travel toward a biconcave lens and are all bent away from the principal axis. Which lens is shown in the diagram? a
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An atom of nitrogen had seven protons in its nucleus. how many electrons does it have
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Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.
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Biology, 22.06.2019 14:20
What term describes a doctor who becomes a specialist by meeting standards beyond those of getting a license and passing a test in the specialty area?
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Parallel light rays travel toward a biconcave lens and are all bent away from the principal axis. Wh...
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