Silver Company uses one raw material, silver ore, for all of its products. It spends considerable time getting the silver from the ore before it starts the actual processing of the finished products, rings, lockets, etc. Traditionally, the company made one product at a time and charged the product with all costs of production, from ore to final inspection. However, in recent months, the cost accounting reports have been somewhat disturbing to management. It seems that some of the finished products are costing more than they should, even to the point of approaching their retail value. It has been noted by the accounting manager that this problem began when the company started buying ore from different parts of the world, some of which require difficult extraction methods. Can you explain how the company might change its accounting system to reflect the reporting problems better? Are there other problems with the purchasing area?

Explanation:

From the  question, it seems that the existing accounting method does not take into account all or some of the extraction costs. Some batches of the raw material may be very expensive as they are procured through some expensive extraction process. So, to overcome this issue the accountant can assign all extraction costs to a joint-cost category. In this way the extraction costs of the raw material procured from some are would be shared such it will average out on the finished product.

There could be some problems with the purchase department as well and not just the accounting system. It can help the company if it can look at some expert advice in its purchasing department.

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.

first one

explanation: