2. Justin is driving at a constant velocity of 22.6 m/s eastbound in his 945-kg car on a rough road. Suddenly, he sees a raccoon in the street, so he slams on the brakes. His brakes exert a force of
100 N on the wheels.

a. Draw and Label a FBD before the brakes are applied.

b. Calculate the net force

C. Calculate the acceleration of the car once the brakes are applied.

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