Answer:
Direct current
Explanation:
The current that is supplied by electric cells and batteries.Electons flows in one direction and does not change directions.
Radio waves are used in cell phone wireless communication by this: Radio waves are released from the cell phone and travel to satellites in the stratosphere. After they reach the satellite, they are redirected to the recipient of the call/text.
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decreased 5 times
Explanation: if the force increases 5 times between them would decrease 5 times
