Type A nerve fibers in humans can conduct nerve impulses at speeds up to 139.8 m/s. How fast is this in mph?

This is a question from my physic homework. I have tried converting 139.8 m/s to mile then to hrs and i got .000241 mph. When I input it it said this is not correct. Please help thanks!

139.8 m/s * (1 mile/1609 m) *(3600 s/h)

= 313 mi/h

To convert the speed from meters per second (m/s) to miles per hour (mph), you need to follow these steps:

Step 1: Convert meters to miles
Since 1 mile is equal to 1609.34 meters, divide the given speed by 1609.34 to convert it from meters to miles.

139.8 m/s ÷ 1609.34 ≈ 0.0869 miles per second

Step 2: Convert seconds to hours
Since there are 3600 seconds in an hour, multiply the speed in miles per second by 3600 to convert it to miles per hour.

0.0869 miles per second × 3600 ≈ 312.84 miles per hour

Therefore, the speed of Type A nerve fibers in humans is approximately 312.84 mph.