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Which statement best describes who the period and frequency of electromagnetic was change between gamma rays and microwaves? a) the period and frequency stay the same. b) the period increases and the frequency decreases. c) the period decreases and the frequency increases. d) the period increases and the frequency increases.
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Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine
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In a lever, the effort arm is two times as long as the load arm. the resultant force will be...
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