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Describe a way to separate a mixture of sand and salt .
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Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass
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Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.
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Describe a way to separate a mixture of sand and salt ....
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