1. If the speed of water waves is 3.2 meters/sec, what will be the 1/2 angle of the cone formed by the wake of a boat travelling at 14 meters/sec?

θ = degrees

2. Ocean waves 1.6 meters apart are moving towards the beach with a speed of 3.2 meters/sec. You are in a small boat heading out (against the waves) at 13.6 meters/sec. With what frequency do you hit the waves?

f= Hz