Aclient of an investment firm has $1 available for investment. he has instructed that his money be invested in three stocks, so that no more than $5000is invested in any one stock but at least $1000 be invested in each stock. he has further instructed the firm to use its current data and invest in the manner thatmaximizes his overall gain during a one-year period. the stocks, the current price per share and the firm’s predicted stock price a year from now are summarized below: stock current price projected price 1 yearjames $25 $35qm $50 $60del candy $100 $125if the client had an additional $1000 available for investment, use the sensitivity report to determine what would happen to the optimal allocation of shares and to the resulting profit. j qm dc returnif the client increased the maximum investment to $6000 for just one stock, which one should it be? use the appropriate shadow price to calculate the new profit when this change is made. use the sensitivity report and the shadow price to calculate the change on the solution and the profit (one decimal place).j qm dc returnsuppose the profit on james candy decreased by $1 and the profit on qm increased by $1, use the 100% rule to calculate if this is an allowable change. state the % you get (2 decimal places). then determine the new share allocation (if it remains unchanged, re-write) and the resulting profit

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.

a

explanation:

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