A fighter-bomber is making a bombing run flying horizontally at 500 knots (100 m/s). At an altitude of 100 m. a. How long will it take for the bomb to hit the ground after it is dropped from the plane

Explanation:

We can use kinematics equation to solve this problem. Since in the vertical direction is , we have:

(freefall equation)

Plugging in values, we get:

(one significant figure).

*The horizontal velocity is irrelevant in this question. It only affects the horizontal displacement of the object (where the object lands), not how long it takes for the object to hit the ground.

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

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