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
This is another time to look at Newton's 2nd law of motion:
Net Force = (mass) x (acceleration)
If the object is not moving, then its acceleration is certainly zero, and Newton's law looks like this:
Net Force = (mass) x (zero)
or Net Force = (zero) .
"Net Force = zero" means that if there ARE any forces acting on the object, then they add up to zero, and we call them "balanced" forces.
So the answer is '<em>yes</em>', and that's why.
Answer:
A
Explanation:
You can get alot of info from it then again the info could be misleading
Answer:
B
Explanation:
You can get some good info from the internet but its most likely the wrong info
Answer:
c
Explanation:
It informs you with the info you need then again you are most likely getting socialy forced information.
Answer:
The kinetic energy of an electron is 
Explanation:
Given that,
Distance = 0.1 nm
We need to calculate the momentum
Using uncertainty principle
Where, 
= change in momentum
= change in position
Put the value into the formula
We need to calculate the kinetic energy for an electron
Where, P = momentum
m = mass of electron
Put the value into the formula
Hence, The kinetic energy of an electron is
The word heliocentric means that the planets revolve around a star. For us it's the Sun.
So, the answer to this question is the Sun.
