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Physics, 21.06.2019 15:00
An ambulance emits a frequency of 450 hz from its siren. what frequency is heard by a man as the ambulance moves toward him? less than 450 hz more than 450 hz 450 hz 0 hz
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Physics, 21.06.2019 20:30
Which statement best describes how private industry decides where to spend the money on research and development
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Gas cloud 1 is likely to form a star. gas cloud 2 is not. based on this information, match the given conditions with each cloud
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Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.
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If the Greek got Zeus is the ruler of the universe will we ever see him...
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