On June 15, 2021, Sanderson Construction entered into a long-term construction contract to build a baseball stadium in Washington, D. C., for $220 million. The expected completion date is April 1, 2023, just in time for the 2023 baseball season. Costs incurred and estimated costs to complete at year-end for the life of the contract are as follows ($ in millions): 2021 2022 2023 Costs incurred during the year $40 $80 $50Estimated costs to complete as of December 31 120 60Required: a. Compute the revenue and gross profit will Sanderson report in its 2021, 2022, and 2023 income statements related to this contract assuming Sanderson recognizes revenue over time according to percentage of completion. b. Compute the revenue and gross profit will Sanderson report in its 2021, 2022, and 2023 income statements related to this contract assuming this project does not qualify for revenue recognition over time 3. Suppose the estimated costs to complete at the end of 2022 are $80 million instead of $60 million. Compute the amount of revenue and gross profit or loss to be recognized in 2022 assuming Sanderson recognizes revenue over time according to percentage of completion.

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.

c.

clarify customers’ doubts only when asked.

according to the song of roland, the characteristics of an ideal knight are: loyalty to the king, skilled warriors and horseman, valiant, bold, courageous, strong and proud in battle. they should be determined to fulfil their duties and willing to die to make their people safe.