A Ferris wheel is a vertical, circular amusement ride with radius 9 m. Riders sit on seats that swivel to remain horizontal. The Ferris wheel rotates at a constant rate, going around once in 10 s. Consider a rider whose mass is 54 kg.

At the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum?
At the bottom of the ride, what is the vector force exerted by the seat on the rider?
At the top of the ride, what is the perpendicular component of the rate of change of the rider's momentum?
At the top of the ride, what is the vector gravitational force exerted by the Earth on the rider?
At the top of the ride, what is the vector force exerted by the seat on the rider?

trig 15.3 cos

the answer would be   dignified - apex

force tends to be low and long diustance masses are high

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