The only force acting on a 2.0 kg canister that is moving in an xy plane has a magnitude of 5.0 N. The canister initially has a velocity of 8.0 m/s in the positive x direction and some time later has a velocity of 10.0 m/s in the positive y direction. How much work is done on the canister by the 5.0 N force during this time

Explanation:

Given data

Mass m=2.0 kg

Magnitude of force F=5.0 N

Initial velocity Vo=8.0i m/s

Final velocity Vf=10.0j m/s

The change in the kinetic energy of canister equals to net work done on the canister

So

ΔK=Wnet

Kf-Ki=Wnet

For initial kinetic energy

For final Kinetic energy

Work done on canister by 5.0N force is given as:

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