840 feet/40 seconds = 21 feet per second.
840 feet/40 seconds = 21 feet per second.
840 feet/40 seconds = 21 feet per second.
840 feet/40 seconds = 21 feet per second.
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There are 60 seconds in a minute, so to convert seconds to minutes, you divide the number of seconds by 60. In this case, 840 seconds divided by 60 equals 14 minutes. Therefore, there are 14 minutes in 840 seconds.
840 seconds.
There are 12 inches in one foot. Therefore, 840 inches is equal to 840/12 = 70 feet.
There are 30.48 centimetres in one foot. Therefore, rounded to two decimal places, 840 centimetres is equal to 840 / 30.48 = 27.56 feet.
840 square feet.