Will a homemade telephone made of two cans and a string work better with a tightly woven string or a loosely woven string? a) a tightly woven string because it will not come apart as easily b) a loosely woven string because the sound waves have more room to move c) a tightly woven string because sound waves travel best through dense materials d) a loosely woven string because sound waves travel best through less dense materials

One kind of e-book display consists of millions of very small spheres that float in a thin fluid layer between two conducting transparent plates. each sphere is black on one side and white on the other, and possesses an electric dipole moment directed from the white side to the black. when an electric field is applied between the plates, the spheres rotate so that their dipole moment lines up with the field. depending on the fields direction, either the black or the white sides of th espheres can be made visible.the dipole moment of the spheres can be modeled as two opposite charges of magnitude 3.5 x 10^-15 c, separated by a distancce of 100 micrometers (um). what is the maximum possible torque on a sphere if the electric field between the transparent plates is 4.0 x 10^5 n/c