Article: As with previous USB versions, USB 3.0 ports come in low-power and high-power variants, providing 150 mA and 900 mA respectively, while simultaneously transmitting data at SuperSpeed rates. Additionally, there is a Battery Charging Specification (Version 1.2 – December 2010), which increases the power handling capability to 1.5 A but does not allow concurrent data transmission. The Battery Charging Specification requires that the physical ports themselves be capable of handling 5 A of current[citation needed] but limits the maximum current drawn to 1.5 A.

Question: What are the power variants in USB 3.0 ports?
Ans: low-power and high-power


Here is a question about this article: Arsenal's tally of 13 League Championships is the third highest in English football, after Manchester United (20) and Liverpool (18), and they were the first club to reach 8 League Championships. They hold the highest number of FA Cup trophies, 12. The club is one of only six clubs to have won the FA Cup twice in succession, in 2002 and 2003, and 2014 and 2015. Arsenal have achieved three League and FA Cup "Doubles" (in 1971, 1998 and 2002), a feat only previously achieved by Manchester United (in 1994, 1996 and 1999). They were the first side in English football to complete the FA Cup and League Cup double, in 1993. Arsenal were also the first London club to reach the final of the UEFA Champions League, in 2006, losing the final 2–1 to Barcelona.
What is the answer to this question: How many League Championships has Arsenal won?
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So... 13


The problem: Answer a question about this article:
Transport is one of the four main areas of policy administered by the Mayor of London, however the mayor's financial control does not extend to the longer distance rail network that enters London. In 2007 he assumed responsibility for some local lines, which now form the London Overground network, adding to the existing responsibility for the London Underground, trams and buses. The public transport network is administered by Transport for London (TfL) and is one of the most extensive in the world.
Which elected official is financially responsible for public transportation in London, except for long-distance railways?
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The answer: the Mayor of London


Problem: Please answer a question about the following article about Detroit:
Annual summer events include the Electronic Music Festival, International Jazz Festival, the Woodward Dream Cruise, the African World Festival, the country music Hoedown, Noel Night, and Dally in the Alley. Within downtown, Campus Martius Park hosts large events, including the annual Motown Winter Blast. As the world's traditional automotive center, the city hosts the North American International Auto Show. Held since 1924, America's Thanksgiving Parade is one of the nation's largest. River Days, a five-day summer festival on the International Riverfront lead up to the Windsor–Detroit International Freedom Festival fireworks, which draw super sized-crowds ranging from hundreds of thousands to over three million people.
Which festival spans five days?
A: River Days


Question: Read this and answer the question

Compass-M1 transmits in 3 bands: E2, E5B, and E6. In each frequency band two coherent sub-signals have been detected with a phase shift of 90 degrees (in quadrature). These signal components are further referred to as "I" and "Q". The "I" components have shorter codes and are likely to be intended for the open service. The "Q" components have much longer codes, are more interference resistive, and are probably intended for the restricted service. IQ modulation has been the method in both wired and wireless digital modulation since morsetting carrier signal 100 years ago.

What is the phase shift of the sub-signals detected in each frequency band used by  Compass-M1?
Answer: 90 degrees (in quadrature)


Hunting and gathering was presumably the subsistence strategy employed by human societies beginning some 1.8 million years ago, by Homo erectus, and from its appearance some 0.2 million years ago by Homo sapiens. It remained the only mode of subsistence until the end of the Mesolithic period some 10,000 years ago, and after this was replaced only gradually with the spread of the Neolithic Revolution.
What began replacing hunting-gathering at the end of the Mesolithic period?
Neolithic Revolution