Answer:
E. The wheel with spokes has about twice the KE.
See explanation in: https://quizlet.com/100717504/physics-8-mc-flash-cards/
Answer:
It's an Angle of incidence that provides a 90° angle but is also refracted at the same time. it's used to find the water-air boundary (which is 48.6 degrees). in addition, its an angle of incidence value.
Sound Waves will be an example of mechanical waves.. hope this helps!
Answer: 
Explanation:
We have the following equation:

We have to find
this means we have to isolate it:

