Asatellite is moving in an elliptical orbit about a planet. the equation of it’s planar orbit is 3x^2+4y^2=20. if the velocity of the satellite in the y direction is 10 when the y coordinate of the satellite is 2, what is the velocity in the x direction at that time?

Explanation:

Given

Equation of Planet orbit

also

when

Substitute the value of y in 1

differentiate 1 to get velocity in x direction

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