Problem: Capacitor:

The simplest model capacitor consists of two thin parallel conductive plates separated by a dielectric with permittivity ε . This model may also be used to make qualitative predictions for other device geometries. The plates are considered to extend uniformly over an area A and a charge density ±ρ = ±Q/A exists on their surface. Assuming that the length and width of the plates are much greater than their separation d, the electric field near the centre of the device will be uniform with the magnitude E = ρ/ε. The voltage is defined as the line integral of the electric field between the plates

What equation describes the charge density for an unideal model of a capacitor?
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A: unanswerable


Problem: Melbourne:

Melbourne has four airports. Melbourne Airport, at Tullamarine, is the city's main international and domestic gateway and second busiest in Australia. The airport is home base for passenger airlines Jetstar Airways and Tiger Airways Australia and cargo airlines Australian air Express and Toll Priority; and is a major hub for Qantas and Virgin Australia. Avalon Airport, located between Melbourne and Geelong, is a secondary hub of Jetstar. It is also used as a freight and maintenance facility. Buses and taxis are the only forms of public transport to and from the city's main airports. Air Ambulance facilities are available for domestic and international transportation of patients. Melbourne also has a significant general aviation airport, Moorabbin Airport in the city's south east that also handles a small number of passenger flights. Essendon Airport, which was once the city's main airport also handles passenger flights, general aviation and some cargo flights.

Which airport is the second busiest in all of Australia?
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A: Melbourne Airport


Problem: Education:

Informal learning usually takes place outside educational establishments, does not follow a specified curriculum and may originate accidentally, sporadically, in association with certain occasions, from changing practical requirements. It is not necessarily planned to be pedagogically conscious, systematic and according to subjects, but rather unconsciously incidental, holistically problem-related, and related to situation management and fitness for life. It is experienced directly in its "natural" function of everyday life and is often spontaneous.

What is not necessary for informal learning?
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A: to be pedagogically conscious, systematic and according to subjects


Problem: Premier League:

Its main body is solid sterling silver and silver gilt, while its plinth is made of malachite, a semi-precious stone. The plinth has a silver band around its circumference, upon which the names of the title-winning clubs are listed. Malachite's green colour is also representative of the green field of play. The design of the trophy is based on the heraldry of Three Lions that is associated with English football. Two of the lions are found above the handles on either side of the trophy – the third is symbolised by the captain of the title winning team as he raises the trophy, and its gold crown, above his head at the end of the season. The ribbons that drape the handles are presented in the team colours of the league champions that year.

What has a golden band around its circumference?
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A:
unanswerable