Q: 3 hour equal to how many second?

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3/4 of an hour

40 minutes = 2/3 of an hour

6.67 miles pr. hour

This is equal to 2/3

3 km per hour = 1.86 miles per hour = 1.86/60 = 0.031 miles per minute = 0.031/60 = 5.2*10-4 miles per second.

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3 miles per hour is equal to 4.4 feet per second.

3/4 of an hour

There are 60 minutes/hour x 60 seconds/minute = 3600 seconds in one hour. Therefore, 3 hours is equal to 3 x 3600 = 10800 seconds.

40 minutes = 2/3 of an hour

45 minutes.

There are 12 x 3 x 1760 = 63360 inches in one mile. Therefore, 45 miles per hour is equal to 45 x 63360 = 2851200 inches per hour. There are 3600 seconds in one hour. Therefore, 2851200 inches per hour is equal to 2851200/3600 = 792 inches per second.

24km per hour is 62/3 metres per second.

6.67 miles pr. hour

Nope. It would have to run 10,800 miles an hour to equal three miles per second!

120 km per hour = 120,000 meters per hour = 331/3 meters per second

Clocks have 0, 2 or 3 hands: 0 (digital clocks), 2 (hour and minute), 3 (hour, minute and second).

0.05 of an hour would equal to 3 minutes.