The Senate, the legislature of the fictional country of Romange, is considering legislation that will generate benefits of $20 million and costs of $26 million. For perspective, Romange's population is 40 million. Passing the legislation isefficient , and if everyone in Romange shared equally in both its benefits and its costs, the Senate will votefor the legislation. If the benefits of the legislation are concentrated among a few people instead of widespread among the population, those people will be willing to spend up to lobbying the Senate for the legislation. (Note: Assume that the costs are widespread; therefore, you can ignore them in the calculations of the few who experience the benefits.) The less widely spread are the costs of the legislation, the is the likelihood of lobbying against the legislation by those who will incur its costs. Suppose that, as before, the benefits of the legislation are concentrated among a small group, the costs are very widespread, and the Senate is responsive to lobbying. The likely amount spent on lobbying against the legislation is , in which case the Senate will likely vote the legislation.

answer; /// i believe its (bas design);

sound is invisible, but sometimes we can feel it. when a kettle-drum is thumped with a stick that time the tight drum skin moving up and down very quickly for some time and then it pumped sound waves into the air. loudspeakers also work in a similar manner.

components of a speaker:

electromagnet

in order to translate an electrical signal into an audible sound, an electromagnet is used in looudspeakers

  suspension

suspension is used to   center the voice coil in the gap of the magnet and it exerts a restoring force to keep it there. suspension is used to limits the maximum mechanical excursion of the diaphragm and voice coil.

voice coil

voice coil is a coil of wire which is attached to the apex of a loudspeaker cone. it provides the motive force to the cone by the reaction of a magnetic field to the current passing through it.

cone

in a   loudspeaker, a   thin, semi-rigid membrane attached to the voice coil, which moves in a magnetic gap due to which it vibrates   and produced sound. it is known as diaphragm and it can also be called a cone, though not all speaker diaphragms are cone-shaped.

surround

surround is also known as front suspension. surround is used to join the cone to the chassis. together with the suspension it controls the cone excursion, and it is also used to   determine how energy which is   travelling through the cone is absorbed, and how the speaker limits when it reaches the ends of its travel.

dustcap

dustcap is used to protect the voice coil from dust and dirt. it is a part of the cone.

how speaker work

the outer part of the cone is fastened to the outer part of the loudspeaker's circular metal rim. the inner part is fixed to   voice coil that sits just in front of a permanent magnet . when loudspeaker is hooked up to a stereo, electrical signals feed through the speaker cables into the coil. it will convert the coil into an electromagnet magnet . when electricity flows back and forth in the cables, the electromagnet either repels or attract the permanent magnet. this moves the coil back and forth, and it pull and push the loudspeaker cone. like a drum skin vibrating back and forth, the moving cone pumps sounds out into the air.in this way loudspeakers works.