Answer:
8.4 m/s
Explanation:
The toy completes 10 circle in 30 seconds. So its frequency of revolution is

The periof of revolution is the reciprocal of the frequency, so

The radius of the circular path is
r = 4.0 m
So the total distance covered by the toy in one circle is the length of the circumference:

And so the average speed is

Answer:
yes I think I must have a tree of me I hope it will help you please follow me
Answer:
the answer is B
Explanation:
wave x has the highest hertz making it the answer
<span>The direction of the electric field's vibration</span>