Let r denote the distance between the center of the earth and the center of the moon. what is the magnitude of the acceleration ae of the earth due to the gravitational pull of the moon?

The magnitude of the acceleration ae of the earth due to the gravitational pull of the moon is

Explanation:

By Newton's gravitational law, the magnitude of the gravitational force between two objects is:

(1)

With G the gravitational constant, M the mass of earth, m the mass of the moon and r the distance between the moon and the earth, a quick search on physics books or internet websites give us the values:

Using those values on (1)

Now, by Newton's second Law we can find the acceleration of earth ae due moon's pull:

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

it was given as a lesson and guide for prayer.