Physic What is the electric force between the ball and the comb? A small ball has a charge of –8.5 x 10-6 C.

A comb with a charge of 6.2 x 10-6 C is placed 0.10 m away from the ball.

What is the electric force between the ball and the comb?

3.1 N

52 N

1.3 N

47 N

It's B. Hope this helps.

Explanation: If it's not that answer, correct me.

Answer is 47 N

Explanation:

Apply Coulomb's law

by using the formula

F= kQ1Q2/ r²

you have all the data , you can start with any charge and the distance is there as r and its already in meters for you then calculate

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia