Question

An electron travels 1.92 m in 4.47 × 10−8 s. How fast is it traveling? Answer in units of m/s.

Answer 1

Speed = (distance covered) / (time to cover the distance).

             =  (1.92 meters)  /  (4.47 x 10⁻⁸ second)

            = 42,950,000 meters/second  (rounded to the nearest 10,000 m/s)

That's about  96.1 million miles per hour, or about 14% of the speed of light.