Final answer:
To calculate the angular velocity, convert the given wind speed to meters per second, halve the diameter to find the radius, and apply the formula ω = v/r.
Step-by-step explanation:
The question asks for the angular velocity in revolutions per second of a tornado that has a diameter of 51.0 meters and carries a wind speed of 425 km/h. To find angular velocity (ω), we must first convert the linear velocity (v) from km/h to m/s. Doing so, 425 km/h converts to 118.06 m/s (1 km/h = 0.27778 m/s). The radius (r) of the tornado is half its diameter, which is 25.5 m. The formula for angular velocity is ω = v/r, which we can now compute using the converted linear velocity and the tornado's radius.