An arc-minute is 1/60 of a degree. It is not a measure of length, so you can't convert it to inches.
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72,980 (rounded)
5.75 degrees.
One minute is six degrees. Multiply however many minutes the hands are apart by six.
44 times in 24 hours.(Considering the hour- and minute-hands only.)
To solve, you need how far is travelled in 1 minute and the circumference of the wheel (in the same units) which gives how far the wheel travels in one revolution; then dividing the former by the latter will give the revolutions per minute: I'll work in inches: There are 63360 inches in 1 mile and 60 minutes in 1 hour, thus: 10mph = 10 x 63360 ÷ 60 inches per minute = 10560 ipm circumference = π x diameter = 26π inches ⇒ revolutions per minute = 10560 ipm ÷ 26π ins ~= 129.3 rpm