3. Two charged boxes are 4 meters apart from each other. The blue box has a charge of +0.000337
C and is attracting the red box with a force of 626 Newtons. Determine charge of the red box.
Remember to indicate if it is positive or negative.
0.0033 C

Charge on the red box is -0.0033 C as it is attracting the blue box

Explanation:

As we know that two boxes are attracting each other

So here we can say that two boxes will have opposite charges

So as we know that electrostatic force between two charges is given as

here we have

here we know that

r = 4 m

F = 626 N

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

can u provide the graph and if its not possible

then i can tell u the segment where the

average time interval starts degrading is the segment where the car is slowing down