Which two characteristics make electromagnetic waves effective in
communication?
A. They do not require a medium to carry information.
B. They move faster through matter than through space.
C. They carry more energy than visible light.
D. They carry information very quickly.
Answers: 3
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Answers: 3
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Answers: 1
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Elements that have one valence electron and are very reactive are called
Answers: 1
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Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano.the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? positive force → balanced force → negative force negative force → balanced force → positive force positive force → unbalanced force → negative force negative force → unbalanced force → positive force
Answers: 1
Which two characteristics make electromagnetic waves effective in
communication?
A. They do n...
A. They do n...
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