Using the speed of sound at sea-level ... approx 343 meters per second ...
it would take about 10.25 minutes.
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The answer above in incorrect if sonic speed is 343 meters/sec.
One mile is 1609.344 meters (exactly)
1609.344 meters/mi x 144mi ≈ 231746 meters in 144 miles
231746 meters divided by 343 meter/sec ≈ 675.6 sec or 11.26 minutes
73 / A = hours of travel time
That depends on your speed.
It depends on the speed at which you travel.
This speed is 40 miles/hour.
Originally he was said to be the speed of sound, at 767+ miles per hour at sea level. In Sonic Unleaded the check points would report his speed in excess of 2500 miles an hour. The Sonic Adventure DX manual lists him at least as fast as 3840 miles an hour (hypersonic)
It would depend on your speed
If he is using his true speed, it would take just a few second.
The speed of light is ~186,282 Miles per second. You do the math.
637 miles. Did you mean how long does it take to travel 637 miles? That would depend on how fast you are going. That would depend on what your speed is, your miles per hour.
The number of miles you would travel in 8 minutes would depend on the speed you are traveling. At 60 miles per hour, you would travel 8 miles in 8 minutes.
Time = Distance/Speed
That depends on the speed. Choose a suitable speed, then divide the distance by the speed.