between one-half hour after sunset and one hour before sunrise
18 miles on the bicycle, 60 miles on the motorboat.
The current speed is about 4 miles per hour.
The Sole F80 treadmill will operate in the range of 0.5 miles per hour up to 11 miles per hour. The Sole F85 treadmill can go up to 12 miles per hour.
A knot is a nautical mile per hour. Thus it will take 10 hours at 10 knots.
60 miles / 4 hours = 15 miles per hour.
30 more seconds
If the motor operates at 25 miles per hour or less, there are no age restrictions. Eleven years and older can operate vehicles that go over 25 miles per hour.
The time (hours) required to drive 20 miles is (20) / (speed, in miles per hour)
325 miles / 6 hours = 54 1/6 miles per hour (or 54.2 mph)
At speeds up to 40 miles per hour
If you do not consider aerodynamic drag (such as being in space), then yes. The energy required is the same.If you do consider aerodynamic drag (such as a car), then no. Some energy must be used to push against the wind as well as the energy needed to accelerate the additional 30 MPH.Although irrelevant to the question, it is worthy to note that aerodynamic drag increases exponentially and the energy required to sustain 60 MPH would be much greater than the energy required to sustain 30 MPH.
A pace of 18.6 mph is required.