Around 21 minutes and 40 seconds
forty five minutes
Half an hour down stream one and a half hours upstream if the water is running at about 1 mile an hour.
Age is of very little importance to running a 5K race. As long as you are in good shape and are confident in your ability to complete your goal, you are able to take part in a 5K race.
Just over 6½ minutes.
100 seconds. 1 m/s 3x108
One hour to a half an hour.... not very long
About an hour
It would take him 30 minutes. You divide 10 miles by 2 to get 5 miles. So you would take 1 hour dived by 2 to get 1 half hour or 30 minutes.
Its take a lot of training for long distance running such as your breathing training for long distance you have to learn how to breath for the running and of course the training for the running it usually takes a month for the training.
about an hour
This would depend, based on the speed at which you are traveling. If you are running at 9 miles per hour, you could run 18 miles in 2 hours, but if you are only running at 3 miles per hour, it would take you 6 hours to run the same 18 mile distance.