Consider the following demand schedule for rainbow looms. assume that the marginal cost of producing a rainbow loom is a constant $2.50. note that when marginal cost is constant, average cost is constant. fixed costs are assumed to be zero.

price
($/rainbow loom) quantity demanded
(rainbow loom)
$17.50 0
$15.00 12
$12.50 42
$10.00 36
$7.50 48
$5.00 60
b. recall that a monopoly facing this demand schedule would produce 36 rainbow looms. if instead of a monopoly, a two-firm cartel controlled the rainbow loom market, how many rainbow looms would each firm want to produce in order to maximize industry profits?

each firm would produce looms

c. calculate each firm's profits if each firm produces output at the level you calculated in part b.

firm profits: $

now suppose one firm decides to break from the cartel and produce 12 more units of output than what you calculated in part b. what are the deviating firm's profits now? what about the profits of the "cooperating" firm whose production levels stay at the agreed-upon quantity?

deviating firm's profits: $

cooperating firm's profits: $

do firms in this cartel have an incentive to deviate from the agreed-upon level in part b?

yes; a firm will earn higher profits if it deviates from the agreement while the other continues to honor the agreement.

no; each firm earns more profits by cooperating than by deviating.

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.

d, rjskdndjsndbdnsjdbxbc

it is d i just took the test