Me on 7& 8. it would be really appreciated. : ) i will be giving brainiest.

The answer to your question is below

Explanation:

For question seven, from the posible solutions, the only one that has units of acceleration is the first one, 2.00 m/s², My answer is 6.00 m/s², but in the solutions 6.00 m/s has units of velocity not acceleration, so I would choose the first option.

The law of Newton that says that for every action there is and equal but opposite reaction is the third law,

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