New engine arrives for Hanover Area Fire & Rescue

Planes: Fire and Rescue

Firefighting Basics: Ladder Tip Positioning - Firefighter Training Drill

LAFD Training: Ladders and Roof Operations

The siren of a fire engine that is driving northward at 30.0 m/s emits a sound of frequency 2000 Hz. A truck in front of this fire engine is moving northward at 20.0 m/s. (a) What is the frequency of the siren's sound that the fire engine's driver hears reflected from the back of the truck? (b) What wavelength would this driver measure for these reflected sound waves? | Numerade

animated video of a fire engine with a blazing siren on a white background