Problem: Please answer a question about the following article about Antenna (radio):
Maximum power transfer requires matching the impedance of an antenna system (as seen looking into the transmission line) to the complex conjugate of the impedance of the receiver or transmitter. In the case of a transmitter, however, the desired matching impedance might not correspond to the dynamic output impedance of the transmitter as analyzed as a source impedance but rather the design value (typically 50 ohms) required for efficient and safe operation of the transmitting circuitry. The intended impedance is normally resistive but a transmitter (and some receivers) may have additional adjustments to cancel a certain amount of reactance in order to "tweak" the match. When a transmission line is used in between the antenna and the transmitter (or receiver) one generally would like an antenna system whose impedance is resistive and near the characteristic impedance of that transmission line in order to minimize the standing wave ratio (SWR) and the increase in transmission line losses it entails, in addition to supplying a good match at the transmitter or receiver itself.
What requires matching of the empedance to an antenna system?
A: Maximum power transfer
Problem: Please answer a question about the following article about Pacific War:
It is generally considered that the Pacific War began on 7/8 December 1941, on which date Japan invaded Thailand and attacked the British possessions of Malaya, Singapore, and Hong Kong as well as the United States military bases in Hawaii, Wake Island, Guam and the Philippines. Some historians contend that the conflict in Asia can be dated back to 7 July 1937 with the beginning of the Second Sino-Japanese War between the Empire of Japan and the Republic of China, or possibly 19 September 1931, beginning with the Japanese invasion of Manchuria. However, it is more widely accepted that the Pacific War itself started in early December 1941, with the Sino-Japanese War then becoming part of it as a theater of the greater World War II.[nb 9]
When do most people believe the Pacific War began?
A: early December 1941
Problem: Please answer a question about the following article about Department store:
David Jones was started by David Jones, a Welsh merchant who met Hobart businessman Charles Appleton in London. Appleton established a store in Sydney in 1825 and Jones subsequently established a partnership with Appleton, moved to Australia in 1835, and the Sydney store became known as Appleton & Jones. When the partnership was dissolved in 1838, Jones moved his business to premises on the corner of George Street and Barrack Lane, Sydney. David Jones claims to be the oldest department store in the world still trading under its original name.
When did the partnership between Jones and Appleton end?
A: 1838
Problem: Please answer a question about the following article about Spectre (2015 film):
Thomas Newman returned as Spectre's composer. Rather than composing the score once the film had moved into post-production, Newman worked during filming. The theatrical trailer released in July 2015 contained a rendition of John Barry's On Her Majesty's Secret Service theme. Mendes revealed that the final film would have more than one hundred minutes of music. The soundtrack album was released on 23 October 2015 in the UK and 6 November 2015 in the USA on the Decca Records label.
Which record label was the soundtrack album released on?
A:
Decca Records