Answer: constructive interference in which waves strengthen each other
Explanation:
If you don't have the coefficient of absorption, I would say Heavy curtains.
Hope this helps :)
Answer:
a=3.53 m/s^2
Explanation:
Vo=0 m/s (because he is not moving at the start)
V1=15 m/s
t= 4.25 s
a = (V1-Vo) / t = 15/4.25 = 3.53 m/s^2
