Aspecimen of oil having an initial volume of 590 cm^3 is subjected to a pressure increase of 3.2 mpa , and the volume is found to decrease by 0.47 cm^3 . what is the bulk modulus of the material?
express your answer using two significant figures.
what is the compressibility of the material?
express your answer using two significant figures.

gravititional force is a force that is acting around you, it is non-contactable and it is a force that pulls you to the core of the earth.

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i need the answer to this too but idk it ; -;

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