-0 m/s
- average velocity=displacement/time
- the runners displacement is zero so her average velocity must be zero
False. That description fits the wave's 'frequency'.
It has nothing to do with refraction.
<span>Kepler found that the orbits of the planets were elliptical.
His work was so convincing that to this day, they still are. </span>
Answer:
Angular frequency is 20 rad/s.
Explanation:
Given that,
A block is attached to an oscillating spring. The function below shows its position (cm) vs. time (s) is given by :
.....(1)
The general equation of oscillating particle is given by :
.......(2)
Compare equation (1) and (2) we get :

So, the angular frequency of the oscillation is 20 rad/s.