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Chemistry, 21.06.2019 17:00
Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects
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What type of electromagnetic radiation has a shorter wavelength than blue light
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Chemistry, 22.06.2019 16:00
Sulfuric acid is a polyprotic acid. write balanced chemical equations for the sequence of reactions that sulfuric acid can undergo when it's dissolved in water.
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3(y-27)2/3+29=-19 what are the values of y...
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