American Surety and Fidelity buys and sells securities expecting to earn profits on short-term differences in price. For the first 11 months of 2021, gains from selling trading securities totaled $7 million, losses from selling trading securities were $10 million, and the company had earned $5 million in interest revenue. The following selected transactions relate to American's investments in trading securities and equity securities during December 2021, and the first week of 2022. The company's fiscal year ends on December 31. No trading securities or equity investments were held by American on December 1, 2021. Assume that the bonds are purchased at face value.

2021
Dec 12 Purchased FF&G Corporation bonds for $19 million.
13 Purchased 2 million shares of Ferry Intercommunications common stock for $28 million. American does not have significant influence over Ferry's operations or policies.
15 Sold the FF&G Corporation bonds for $19.4 million.
22 Purchased U. S. Treasury bills for $88 million and Treasury bonds for $85 million.
23 Sold half the shares of Ferry Intercommunications common stock for $10 million.
26 Sold the U. S. Treasury bills for $89 million. 27 Sold the Treasury bonds for $81 million.
28 Received cash dividends of $200,000 from the Ferry Intercommunications common stock shares.
31 Recorded any necessary adjusting entry relating to the remaining investment. The market price of the Ferry Intercommunications stock was $10 per share.

2022
Jan. 2 Sold the remaining Ferry Intercommunications common stock shares for $12.1 million.
S Purchased Warehouse Designs Corporation bonds for $50 million.

Required:
a. Prepare the appropriate journal entry for each transaction or event during 2021 including any year-end adjusting entries.
b. Indicate any amounts that American would report in its 2021 balance sheet and income statement as a result of these investments
c. Prepare the appropriate journal entry for each transaction or event during 2022

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.