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The Umayyad Caliphate (Arabic: , trans. Al-Khilafat al-umawiyya) was the second of the four major Islamic caliphates established after the death of Muhammad. This caliphate was centered on the Umayyad dynasty (Arabic: , al-Umawiyyun, or , Banu Umayya, "Sons of Umayya"), hailing from Mecca. The Umayyad family had first come to power under the third caliph, Uthman ibn Affan (r. 644656), but the Umayyad regime was founded by Muawiya ibn Abi Sufyan, long-time governor of Syria, after the end of the First Muslim Civil War in 661 CE/41 AH. Syria remained the Umayyads' main power base thereafter, and Damascus was their capital. The Umayyads continued the Muslim conquests, incorporating the Caucasus, Transoxiana, Sindh, the Maghreb and the Iberian Peninsula (Al-Andalus) into the Muslim world. At its greatest extent, the Umayyad Caliphate covered 15 million km2 (5.79 million square miles), making it the largest empire (in terms of area - not in terms of population) the world had yet seen, and the fifth largest ever to exist.
How many Islamic caliphates existed before the death of Muhammad?
A: unanswerable

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Three main parades take place during Carnival. The first is held on the first day, during which the "Carnival King" (either a person in costume or an effigy) rides through the city on his carriage. The second is held on the first Sunday of the festival and the participants are mainly children. The third and largest takes place on the last day of Carnival and involves hundreds of people walking in costume along the town's longest avenue. The latter two parades are open to anyone who wishes to participate.
Which of the festivals is comprised of participants who are mainly children?
A: The second

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The city is also home to the Heineken Brewery that brews Murphy's Irish Stout and the nearby Beamish and Crawford brewery (taken over by Heineken in 2008) which have been in the city for generations. 45% of the world's Tic Tac sweets are manufactured at the city's Ferrero factory. For many years, Cork was the home to Ford Motor Company, which manufactured cars in the docklands area before the plant was closed in 1984. Henry Ford's grandfather was from West Cork, which was one of the main reasons for opening up the manufacturing facility in Cork. But technology has replaced the old manufacturing businesses of the 1970s and 1980s, with people now working in the many I.T. centres of the city such as Amazon.com, the online retailer, which has set up in Cork Airport Business Park.
What online retail giant has operations at the Cork Airport Business Park?
A: Amazon.com

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The maximum energy is a function of dielectric volume, permittivity, and dielectric strength. Changing the plate area and the separation between the plates while maintaining the same volume causes no change of the maximum amount of energy that the capacitor can store, so long as the distance between plates remains much smaller than both the length and width of the plates. In addition, these equations assume that the electric field is entirely concentrated in the dielectric between the plates. In reality there are fringing fields outside the dielectric, for example between the sides of the capacitor plates, which will increase the effective capacitance of the capacitor. This is sometimes called parasitic capacitance. For some simple capacitor geometries this additional capacitance term can be calculated analytically. It becomes negligibly small when the ratios of plate width to separation and length to separation are large.
When the ratios of plate length and width to separation distance are small, what size is the parasitic capacitance?
A:
unanswerable