The correct answer is placing monetary values on everything
Answer:
a. each particle of matter vibrates about its normal rest position and along the axis of propagation,
b. Liquids
C. because liquids have the right amount of space between them for the wave to pass through quickly
Explanation:
Here you go. The answer is r = c/ pi. Simply divide both side by pi, in order to isolate the variable r.
True i do believe but im not 100% sure this isnt my strong suite