Answer:
1.Proton,Nuetron,Electron
2.Electromagnetic force
3.J.J Thompson, Electron
4.b Nucleus
5.c Proton and Neutron
6. Electron
Explanation:
Just finished taking Physical science. Good Luck!
Here two vectors are given of lengths
![\vec l_1 = 8 units](https://tex.z-dn.net/?f=%5Cvec%20l_1%20%3D%208%20units)
![\vec l_2 = 3 units](https://tex.z-dn.net/?f=%5Cvec%20l_2%20%3D%203%20units)
now let say the two vectors are inclined at some angle with each other
so the resultant is given as
![R = \sqrt{l_1^2 + l_2^2 + 2l_1 l_2 cos\theta}](https://tex.z-dn.net/?f=R%20%3D%20%5Csqrt%7Bl_1%5E2%20%2B%20l_2%5E2%20%2B%202l_1%20l_2%20cos%5Ctheta%7D)
now plug in all values
![R = \sqrt{8^2 + 3^2 + 2(8)(3)cos\theta}](https://tex.z-dn.net/?f=R%20%3D%20%5Csqrt%7B8%5E2%20%2B%203%5E2%20%2B%202%288%29%283%29cos%5Ctheta%7D)
Now for maximum resultant the angle between two vectors must be ZERO degree
![R_{max} = \sqrt{8^2 + 3^2 + 2(8)(3)} = 11 units](https://tex.z-dn.net/?f=R_%7Bmax%7D%20%3D%20%5Csqrt%7B8%5E2%20%2B%203%5E2%20%2B%202%288%29%283%29%7D%20%3D%2011%20units)
Now for minimum resultant the angle between two vectors must be 180 degree
![R_{max} = \sqrt{8^2 + 3^2 - 2(8)(3)} = 5 units](https://tex.z-dn.net/?f=R_%7Bmax%7D%20%3D%20%5Csqrt%7B8%5E2%20%2B%203%5E2%20-%202%288%29%283%29%7D%20%3D%205%20units)
ANSWER:
C
EXPLANTION:
The earths crust is the toppest layer of Earth, so that elimates option A and B.
FUN FACT:
Earth is Mostly Iron, Oxygen and Silicon
I’m so sorry if this is wrong, but I hoped help.
Have a nice day :3