7. A musician is staying near the motorway and is playing a constant 300 Hz tone on his flute. You are driving along the motorway at 100 km/h. What is the frequency you hear from the flautist’s instrument before you pass them, and after you pass them?

The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.