A1.00 kg mass is placed at the free end of a compressed spring. the force constant of the spring is 115 n/m. the spring has been compressed 0.200 m from its neutral position. it is now released. neglecting the mass of the spring and assuming that the mass is sliding on a frictionless surface, how fast will the mass move as it passes the neutral position of the spring?

Answer :The mass will move by the speed of 2.14 m/s

Explanation:

Mass of the object,m = 1.00 kg

Distance by spring displaced from its neutral position,x = 0.200 m

Spring constant = 115 N/m

Work done by the spring =

Work done by compression of the spring is equal to change in K.E of object

Kinetic energy = Work done

v = 2.14 m/s

The mass will move by the speed of 2.14 m/s

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