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3 years ago

8

Which of the following electromagnetic waves is not used for communication?

1 answer:

lutik1710 [3]3 years ago

8 0

Microwaves and radio waves are employed in radio and satellite communications while infrared waves are used in remote controls and infrared features of new phones and other electrons. However, gamma rays have far too much energy and cause damage to the body. They are not used in communication.
The answer is A.

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Gauge pressure, at the bottom of the tank in this case, can be calculated from

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Relative to water, the unknow liquid specific weight is 15 times bigger, therefore this is its specific gravity as well.

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