Answer: 8.946 miles per hour
Step-by-step explanation: To convert 4 centimeters per second to miles per hour, you'll need to use unit conversion factors. First, convert centimeters to miles by multiplying by a series of conversion factors:
4 cm/sec x 1 m/100 cm x 1 km/1000 m x 1 mile/1.609 km = 0.002485 miles/sec
Next, convert seconds to hours by multiplying by another conversion factor:
0.002485 miles/sec x 3600 sec/1 hr = 8.946 miles/hr
Therefore, 4 centimeters per second is equivalent to approximately 8.946 miles per hour.