Problem: Copper:

The softness of copper partly explains its high electrical conductivity (59.6×106 S/m) and thus also high thermal conductivity, which are the second highest (to silver) among pure metals at room temperature. This is because the resistivity to electron transport in metals at room temperature mostly originates from scattering of electrons on thermal vibrations of the lattice, which are relatively weak for a soft metal. The maximum permissible current density of copper in open air is approximately 3.1×106 A/m2 of cross-sectional area, above which it begins to heat excessively. As with other metals, if copper is placed against another metal, galvanic corrosion will occur.

What is the maximum premissible current density in open air of copper?
---
A: 3.1×106 A/m2


Problem: The Swazi economy is very closely linked to the economy of South Africa, from which it receives over 90% of its imports and to which it sends about 70% of its exports. Swaziland's other key trading partners are the United States and the EU, from whom the country has received trade preferences for apparel exports (under the African Growth and Opportunity Act – AGOA – to the US) and for sugar (to the EU). Under these agreements, both apparel and sugar exports did well, with rapid growth and a strong inflow of foreign direct investment. Textile exports grew by over 200% between 2000 and 2005 and sugar exports increasing by more than 50% over the same period.
What act gives the US and EU trade preference with Swaziland?
---
Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Hasidic or Chasidic Judaism overlaps significantly with Haredi Judaism in its engagement with the secular and commercial world, and in regard to social issues. It precedes the later and differs in its genesis and emerged focus. The movement originated in Eastern Europe (what is now Belarus and Ukraine) in the 18th century. Founded by Israel ben Eliezer, known as the Baal Shem Tov (1698–1760), it emerged in an age of persecution of the Jewish people, when a schism existed between scholarly and common European Jews. In addition to bridging this class gap, Hasidic teachings sought to reintroduce joy in the performance of the commandments and in prayer through the popularisation of Jewish mysticism (this joy had been suppressed in the intense intellectual study of the Talmud). The Ba'al Shem Tov sought to combine rigorous scholarship with more emotional mitzvah observance. In a practical sense, what distinguishes Hasidic Judaism from other forms of Haredi Judaism is the close-knit organization of Hasidic communities centered on a Rebbe (sometimes translated as "Grand Rabbi"), and various customs and modes of dress particular to each community. In some cases, there are religious ideological distinctions between Hasidic groups, as well. Another phenomenon that sets Hasidic Judaism apart from general Haredi Judaism is the strong emphasis placed on speaking Yiddish; in (many) Hasidic households and communities, Yiddish is spoken exclusively.
Which form of Judaism came before Haredi Judaism?
A: unanswerable


Context and question: Since Elizabeth rarely gives interviews, little is known of her personal feelings. As a constitutional monarch, she has not expressed her own political opinions in a public forum. She does have a deep sense of religious and civic duty, and takes her coronation oath seriously. Aside from her official religious role as Supreme Governor of the established Church of England, she is personally a member of that church and the national Church of Scotland. She has demonstrated support for inter-faith relations and has met with leaders of other churches and religions, including five popes: Pius XII, John XXIII, John Paul II, Benedict XVI and Francis. A personal note about her faith often features in her annual Christmas message broadcast to the Commonwealth. In 2000, she spoke about the theological significance of the millennium marking the 2000th anniversary of the birth of Jesus:
How often does Elizabeth give interviews?
Answer: rarely


Question: In 1853, Victoria gave birth to her eighth child, Leopold, with the aid of the new anaesthetic, chloroform. Victoria was so impressed by the relief it gave from the pain of childbirth that she used it again in 1857 at the birth of her ninth and final child, Beatrice, despite opposition from members of the clergy, who considered it against biblical teaching, and members of the medical profession, who thought it dangerous. Victoria may have suffered from post-natal depression after many of her pregnancies. Letters from Albert to Victoria intermittently complain of her loss of self-control. For example, about a month after Leopold's birth Albert complained in a letter to Victoria about her "continuance of hysterics" over a "miserable trifle".
Is there an answer to this question: After nine pregnancies, what could Victoria have been suffering from that would make her sad and depressed?

Answer: post-natal depression


Clinton returned in 1780 with 14,000 soldiers. American General Benjamin Lincoln was trapped and surrendered his entire 5,400-man force after a long fight, and the Siege of Charles Towne was the greatest American defeat of the war. Several Americans who escaped the carnage joined other militias, including those of Francis Marion, the "Swamp Fox"; and Andrew Pickens. The British retained control of the city until December 1782. After the British left, the city's name was officially changed to Charleston in 1783.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How many soldiers did General Lincoln lead?
Ah, so..
5,400