Here is a question about this article: A watt balance is an instrument for comparing two powers, one of which is measured in SI watts and the other of which is measured in conventional electrical units. From the definition of the conventional watt W90, this gives a measure of the product KJ2RK in SI units, where RK is the von Klitzing constant which appears in the quantum Hall effect. If the theoretical treatments of the Josephson effect and the quantum Hall effect are valid, and in particular assuming that RK = h/e2, the measurement of KJ2RK is a direct determination of the Planck constant.
What is the answer to this question: What value does RK represent?
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So... the von Klitzing constant which appears in the quantum Hall effect


Here is a question about this article: Melbourne rates highly in education, entertainment, health care, research and development, tourism and sport, making it the world's most liveable city—for the fifth year in a row in 2015, according to the Economist Intelligence Unit. It is a leading financial centre in the Asia-Pacific region, and ranks among the top 30 cities in the world in the Global Financial Centres Index. Referred to as Australia's "cultural capital", it is the birthplace of Australian impressionism, Australian rules football, the Australian film and television industries, and Australian contemporary dance such as the Melbourne Shuffle. It is recognised as a UNESCO City of Literature and a major centre for street art, music and theatre. It is home to many of Australia's largest and oldest cultural institutions such as the Melbourne Cricket Ground, the National Gallery of Victoria, the State Library of Victoria and the UNESCO World Heritage-listed Royal Exhibition Building.
What is the answer to this question: Melbourne is the world's most liveable city according to whom?
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So... Economist Intelligence Unit


Here is a question about this article: High school football teams frequently participate in controlled scrimmages with other teams during preseason practice, but exhibition games are rare because of league rules and concerns about finances, travel and player injuries, along with enrollments not being registered until the early part of August in most school districts under the traditional September–June academic term. A more common exhibition is the high school football all-star game, which brings together top players from a region. These games are typically played by graduating seniors during the summer or at the end of the season. Many of these games, which include the U.S. Army All-American Bowl and Under Armour All-America Game, are used as showcases for players to be seen by colleges.
What is the answer to this question: What are two examples of high school football all-star games?
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So...
U.S. Army All-American Bowl and Under Armour All-America Game