The Answer would be Indo - Europeans
Answer:
The distance is
Explanation:
From the question we are told that
The order of maximum diffraction is m = 2
The wavelength is
The angle is 
Generally the condition for constructive interference for diffraction grating is mathematically represented as

where d is the distance between the lines on a diffraction grating
So

substituting values


Explanation:
it can be giraffe.
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Answer:

Explanation:
The moments of the whole object is the sum of the moments of the 2 segments of rod at their ends of which length is L/2 and mass M/2:


