To my knowledge I believe the answer is A. Liquids and gases
It is not possible because if they stop so quickly the surfboard with the motion forward continuing the motion of the van, not backwards
This isn’t the greatest, but I hope it helps
Answer:
Venus has the highest average surface temperature.
Answer
given,
distance between A and B is equal to 5 m
let x be the distance of loud speaker from the source A
For constructive interference, path difference = mλ
x - (5 - x ) = 0 , for m = 0
2 x - 5 = 0
2 x = 5
x = 2.5 cm
For destructive interference
m = 0
x = 4 , 1 cm