SOLUTION: The speed of sound is 1100 ft./sec at sea level. Express the speed of sound in mi/hr usingg dimensional analysis

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Question 1140261: The speed of sound is 1100 ft./sec at sea level. Express the speed of sound in mi/hr usingg dimensional analysis
Found 2 solutions by Theo, josgarithmetic:
Answer by Theo(13342) (Show Source):
You can put this solution on YOUR website!
you want to convert 1100 feet per second to miles per hour.

1 mile = 5280 feet.

divide both sides of this equation by 5280 and you get:

1 / 5280 miles = 1 foot

therefore 1100 feet are equal to 1100 / 5280 miles.

1 hour is equal to 3600 seconds.

divide both sides of this equation by 3600 and you get:

1 second is equal to 1 / 3600 hours.

therefore 1100 feet / 1 second is equivalent to (1100 / 5280) miles / (1 / 3600) hours.

this is equivalent to saying (1100 / 5280) / (1 / 3600) miles per hour.

perform the arithmetic to get 750 miles per hour.

that's your solution.

Answer by josgarithmetic(39617) (Show Source):
You can put this solution on YOUR website!