Later, while taking your groceries back to the car, you accidentally let go of your cart. it rolls straight down a grassy slope at a constant speed of 10 m/s. what is the net force on the cart during this motion

Car is moving on the glassy slope with constant speed

Now we know that

so acceleration is rate of change in velocity

as we know that velocity is constant here so acceleration is zero

so here

now as we know by Newton's II law

since a = 0

so net force will be ZERO on it during this motion

4

explanation:

4

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