Answer: i didnt look at your question its to long
Explanation:
Electronegativity, symbol χ, measures the tendency of an atom to attract a shared pair of electrons (or electron density). An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus.
Answer:
Distance between slits,
Explanation:
It is given that,
Wavelength, 
Angle, 
We need to find the distance between two slits that produces first minimum. The equation for the destructive interference is given by :

For first minimum, n = 0
So, 
d is the distance between slits
So, 


So, the distance between two slits is
. Hence, this is the required solution.
Place mixtuer into water. stir mixture into water, wait untill salt is disoldved. Strain out grain. boil water intill only salt is left. Hope this helps! ^-^
Explanation:
Centripetal acceleration is:
a = v² / r
a = (4.0 m/s)² / 0.60 m
a = 26.6 m/s²