Afigure skater with a moment of inertia of 8.30 kg m2 spins with an angular velocity of 2.30 rad/s. she then pulls her ams in close to her body so that her moment of inertia reduces to 5.13 kg m2, what is her new angular velocity? a. 3.66 rad/s b. 1.42 rad/s c. 3.72 rad/s d. 13.4 rad/s 34. an elastic band with a spring constant of 21.9 n/m is 12.3 cm long at equilibrium. you stretch the elastic so that its total length is now 17.1 cm. how much elastic potential energy is stored in the spring? a. 252 j b. 0.324 c. 1660 j d. 0.0252 j 35. a cord passing through a frictionless, massless pulley has a 2.25 kg block tied to one end to the left of the pulley and a 6.33 kg block tied to the other end on the right of the pulley. assuming that the blocks started at rest what would their speed be after 1.50 s? a. 24.0 m/s b. 6.99 m/s c. 4.53 m/s d. 9.47 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

the ima (higher than 1m) will be greater than the ima with the height of 1m.

its a circle not a square that's simple silly.

explanation: