Which wave has the highest frequency when traveling through the indicated metal? Wavelength of 2.1 m in copper Wavelength of 1.4 m in lead Wavelength of 0.9 m in brass Wavelength of 1.8 m in gold

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.