Answer:
0.38°
Explanation:
= Angle
m = Number
d = Distance
n = Refractive index of liquid = 1.25
a denotes air
l denotes liquid
In the case of double split interferance we have the relation

For air

For liquid

Dividing the two equations

Wavelength ratio = 

The angular separation is 0.38°
The period of the tan function is π so (∅ + π) would yield the same value as ∅
F(∅ + π) = 3
Answer:
Beacause he has more grocceries and food heavy
Explanation:
2NO2 means that there is 2 oxygen atoms and one nitrogen with two sets of that. So its the third one