Sun Devil Hair Design has the following transactions during the month of February. February 2 Pay $700 for radio advertising for February. February 7 Purchase beauty supplies of $1,300 on account. February 14 Provide beauty services of $2,900 to customers and receive cash. February 15 Pay employee salaries for the current month of $900. February 25 Provide beauty services of $1,000 to customers on account. February 28 Pay utility bill for the current month of $300. Required:

Record each transaction. Sun Devil uses the following accounts: Cash, Accounts Receivable, Supplies, Accounts Payable, Service Revenue, Advertising Expense, Salaries Expense, and Utilities Expense.

Sun Devil Hair Design Journal entries

Feb. 2

Dr Advertising expense 70p0

Cr Cash 700

Feb. 7

Dr Supplies 1,300

Cr Accounts payable 1,300

Feb. 14

Dr Cash 2,900

Cr Service revenue 2,900

Feb. 15

Dr Salaries expense 900

Cr Cash 900

Feb. 25

Dr Accounts receivable 1,000

Cr Service revenue 1,000

Feb. 28

Dr Utilities expense 300

Cr Cash 300

Explanation:

No further explanation was been given in this question.

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.