Starting at point A on demand curve D1, determine whether the indicated event will cause demand to increase to D2 or decrease to D3, or whether there will be a movement along the demand curve D1. For each of the following events, indicate where the new point will be after the event occurs. a. Sweaters fall out of fashion: . b. There is a shortage of wool: . c. The winter is particularly long and cold this year: . d. Sweater vendors offer a sale: .

A. Point D

B. Point B

C. Point E

D. Point C

Explanation:

Here is the full question:

The figure below shows three monthly market demand curves for sweaters at a local clothing store.

Starting at point A on demand curve D1, determine whether the indicated event will cause demand to increase to D2 or decrease to D3, or whether there will be a movement along the demand curve D1.

The graph needed to answer this question can be found in the attached image.

The demand curve shows the relationship between price and quantity demanded.

The demand curve is guarded by the law of demand. The law of demand states that the higher the price, the lower the quantity demanded and the lower the price, the higher the quantity demanded.

Only a change in price leads to a movement along the demand curve.

Other factors that affect demand leads to either a leftward or rightward shift of the demand curve.

A leftward shift occurs if demand falls a rightward shift occurs if demand increases.

A. If sweater falls out of fashion, demand for sweaters fall and as a result, the demand curve shifts leftward. The points would shift from A to D.

B. If there's a shortage of wool, the price of sweaters rise. This makes sweaters more expensive. As a result, the quantity demanded falls. This leads to a movement upward along the demand curve. The demand curve moves from point A to B.

C. If it is very cold and winter lasts long, the demand for sweaters would increase. This would shift the demand curve to the right. The demand curve moves from point A to E.

D. If vendors offer a sale, they reduce the price of sweaters. The Quanitity demanded increases as a result. There's a movement along D1 from A to C.

I hope my answer helps you

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.

answer; /// i believe the correct answer is first in, first out(fifo); //