Question

The speed of electromagnetic radiation (like light) is 300,000,000 m/s, which is more quickly written as ___.


3
×
× 109​ m/s


3
×
× 10-9​ m/s


3
×
× 108 m/s

Answer 1

3 × 10^8 m/s

(300,000,000 = 3 × 100,000,000 = 3 × 10^8)