Which of the following is an electromagnetic wave A. Earthquake
B. light
C. Ocean
D. Sound

Explain using examples, what is simple harmonic motion and why it is an important area of study in physics.

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.

Acar travels 40m in 8 seconds find the car speed