Answer:
1.53 m/s
Explanation:
Velocity is given in meters per second, so if it takes the swimmer 72 second to swim 110 meters:
m/s = 110 meters / 72 seconds = 1.527 or 1.53 m/s
B
Red Dwarf
The dispersion of light is the phenomenon of splitting of a beam of white light into its seven constituent colours when passed through a transparent medium. It was discovered by Isaac Newton in 1666.