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water h2o is made up of different elements hydrogen and oxygen is this type of combination a mixture or pure substance
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Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.
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water h2o is made up of different elements hydrogen and oxygen is this type of combination a mixture...
Mathematics, 14.02.2020 22:53
Mathematics, 14.02.2020 22:53