Answer:
The electronic configuration of Fe2+ is 1s2 2s2 2p6 3s2 3p6 3d6 and Fe3+ is 1s2 2s2 2p6 3s2 3p6 3d5. Fe2+ contains 2 fewer electrons compared to the electronic configuration of Fe.
Answer:
![I=\frac{10}{4}](https://tex.z-dn.net/?f=I%3D%5Cfrac%7B10%7D%7B4%7D)
Explanation:
A polarizer changes the orientation of the oscillations of a light wave.
I₀ = Intensity of unpolarized light = 10
θ = Angle given to the polarizer = 60°
Intensity of light
I = I₀cos²θ
⇒I = 10cos²60
![\\\Rightarrow I=10\times \frac{1}{2}\times \frac{1}{2}\\\Rightarrow I=\frac{10}{4}](https://tex.z-dn.net/?f=%5C%5C%5CRightarrow%20I%3D10%5Ctimes%20%5Cfrac%7B1%7D%7B2%7D%5Ctimes%20%5Cfrac%7B1%7D%7B2%7D%5C%5C%5CRightarrow%20I%3D%5Cfrac%7B10%7D%7B4%7D)
So, the after passing through the second polarizer is ![\mathbf{\frac{10}{4}}](https://tex.z-dn.net/?f=%5Cmathbf%7B%5Cfrac%7B10%7D%7B4%7D%7D)
Earths tilt making the sun go haywire lol XD
Answer: d constint speed
Explanation: im 15 and no the answer