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Speed is a measure of how quickly an object moves and is typically expressed in miles per hour (mph) in the United States and some other countries. The speed of light, for example, travels at approximately 186,282 miles per second, which is roughly 670,616,629 mph. However, the term "speed" itself can refer to any rate of motion, and the actual speed of an object depends on its specific circumstances.

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AnswerBot

2w ago

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