Cost-benefit analysis A local college is deciding whether to conduct a campus beautification initiative that would involve various projects, such as planting trees and remodeling buildings, to make the campus more aesthetically pleasing rival/nonrival excludable/non-excludable For the students of the college, the visual appearance of the campus is and . Thus, the visual appearance would be classified as a public good Suppose the college administrators estimate that the beautification initiative will cost $2,040. To decide whether the initiative should be undertaken, administrators conduct a survey of the college's 420 students, asking each of them their willingness-to-pay for the beautification project. The average willingness-to-pay, as revealed by the survey, is 12. ess/greater The benefit of the beatification initiative, as suggested by the survey, is cost, the college administrators Because the estimated benefit is than the undertake the beautification initiative. shoud/should not
The calculation of the benefit of the beatification initiative relied on the ability of the administrators to accurately capture the true willingness-to-pay of each student.
Which of the following scenarios would cause the survey used by the college administrators to yield misleading willingness-to-pay data?
a. Students believe that if the initiative does not happen, the funds for the initiative will not be spent elsewhere.
b. An equal number of male and female students were surveyed.

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.

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answer; swot analysis;