Suppose I wanted to answer this question about the model.
What info about the model would I need to know in order to
make any intelligent guess about the model ?
Hint:
It would really help if I could SEE the model, or at least a photo of it.
Answer:

Explanation:
As we know that

here we have


also we know



so we have


so the height above window is given as



Pressure = Force/ Area = 3000/2 = 1500 pascal.
Answer:
<h2>index of refraction = 1.69</h2><h2>percentage error = 10.58%</h2>
Explanation:
According to Snell's law, the ratio of the sine of angle of incidence to the sine of angle of refraction is a constant for a given pair of media. The constant is known as the refractive index.
Mathematically 
i = angle of incidence measured = 63.5°
r = angle of refraction measured = 32°
n = refractive index

The index fraction calculated is approx. 1.69.
If the index of refraction of a clear plastic as listed in the book is 1.89 and the calculated is 1.69, the percentage error will be calculated as thus;
%error = 
%error = 
%error = 
%error = 10.58%
Answer:
A.
Explanation:
The quantum numbers that are used in the identification of an electron are n, l, m, and s.
n= principle quantum number
l= azimuthal quantum number
m= magnetic quantum number
s= spin quantum number
All the orbitals in a given subshell have the same value of n(principle quantum number) and l( azimuthal quantum number). Thus, the correct option is A.