A2 n apple is hanging from a branch. what is the action force? a. the net force b. the normal force c. a 2 n upward force d. a 2 n downward force

2 N downward force

Explanation:

Since apple is hanging,so due to gravity,according to Newton second law,gravitational effect is due to the weight of the object and is acting downward.So action force is due to gravitational effects.

Hence,2 N will acting in downward direction due to gravity.

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

false.

explanation:

this statement is false. after falling for 5 seconds, its speed will not be 100 m/s.