Given:
Fs=8.7N
K=190N/m
Unkown:
X=?
Equation:
Fs=Kx
8.7N=(190N/m)x
X=4.6*10power of-2m
Answer:
The answer is B
Explanation:
3+ means there is 3 more protons than electrons.
So electron need 3 more (-ve) charge in order to have the same charge as proton to become neutral atom (no charge).
e + 3 = 8
e = 8 - 3
= 5
The sand will be filtered and separated from the water, the sand will stay in/on the filter paper and the water will pass through the filter paper into the flask.