true if you are refering to the desing of the experimnt as it does identify the variable
Answer:

Explanation:
Given that
The speed of the airplane ,v= 142 m/s
The speed of the air ,u = 30 m/s
Lets take angle make by airplane from east direction towards north direction is θ .
Now by using diagram ,we can say that

Now by putting the values in the above equation we get



Therefore the angle will be 12.19° .
V = f(wavelength)
22.0 = 0.0680 (wavelength)
wavelength = 323.52 m
Answer:
i got b but urs is a little different tell me if right
Explanation:
i go 100 on my test