Two objects A and B accelerate from rest with the sameconstant acceleration. Object A accelerates for twice as muchas object B, however. Which one of the following statementsis true concerning these objects at the end of their respectiveperiods of acceleration?A. Object A will travel twice as far as object B. B. Object A will travel four times as far as object B. C. Object A will travel eight times further than object B. D. Object A will be moving four times faster than object B. E. Object A will be moving eight times faster than objectB.

i don't understand. explain it clearly

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