Answer and Explanation:
Some of the advantages of direct water supply system are:
- Smaller size of the cistern
- No risk of polluted water
- Ease of installation
- Lower pipe work
Some of the advantages of indirect water supply system are:
- It can be pumped completely
- Lower demand on the main source
- Minimization of wear and tear on taps
- Larger size of the cistern.
Answer:
A) attractive force between ions = 5.09x10^-19 N of attractive force
B) there will be no repulsion since both ions have opposite charges.
Explanation:
Detailed explanation and calculation is shown in the image below.
Answer:
Hello, I'm good. Thank you for asking
Answer:
Sedimentation is not a good method.
Explanation:
We need to apply Stoke laws and assume that is valid here.
So,

Replacing the values,

Here then we calculate the time,

Where x= Distance, v= velocity

To calculate the surface required we need first to calculate the volume through the volume,
So,

Then,

Here we can calculate the surface

<em>So, the requeriment of Area of tank and settlement time is huge, it's not a practical method.</em>