Chemistry, 19.01.2021 20:30 sandyrose935
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 radiations, 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.
Answers: 2
Chemistry, 22.06.2019 06:00
Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?
Answers: 3
Chemistry, 22.06.2019 07:40
21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8
Answers: 2
Two friends at different locations want to communicate with each other by sending low energy signals...
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