Matching. Write the letter on the line next to the correct definition 1. The process responsible for movement of material in the mantle
2. Melted material created by subduction rises to form volcanoes
3. Crust is pulled apart to form mid-ocean ridges and rift valleys
4. Layer of partially melted material that is responsible for the movement of the tectonic plates and land
formations
A Mantle
B. Divergent Plate Boundary
C. Convergent Plate Boundary
D. Convection

v=ir = 3x15 =45 v

what is the actual question though?

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