So the question is on the picture :)

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.

70 give a real life example showing how sensory neurons work with the motor neurons

What happens when a rubber rod is rubbed with a piece of fur?