Answer:
https://youtu.be/9iulv2QvKwo
Explanation:
Below is an attachment containing the solution.
it he answer is a trachea
a)equal to
properties of a wave
applies in reflection
others include:refraction,diffraction,interference
h = ½at²
t = √(2h/a)
t = √(2(32)/9.8)
t = 2.5555062... 2.6 s
