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At the closing ceremony of 21st International Junior Science Olympiad 2024, 10 students that should have received a Bronze medal, mistakenly received a Silver and 10 students that should have received a Silver, instead were given a Bronze, but due to the only difference being the outline (Outline of a Bronze medal had a "pink bronze" look, and outline of a Silver looked gray-silver colored) no ...
Multiple choice questions lend themselves to the development of objective assessment items, but without author training, questions can be subjective in nature. Because this style of test does not require a teacher to interpret answers, test-takers are graded purely on their selections, creating a lower likelihood of teacher bias in the results. [8]
Toughness is related to the area under the stress–strain curve.In order to be tough, a material must be both strong and ductile. For example, brittle materials (like ceramics) that are strong but with limited ductility are not tough; conversely, very ductile materials with low strengths are also not tough.
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A light-year is the distance light travels in one Julian year, around 9461 billion kilometres, 5879 billion miles, or 0.3066 parsecs. In round figures, a light year is nearly 10 trillion kilometres or nearly 6 trillion miles. Proxima Centauri, the closest star to Earth after the Sun, is around 4.2 light-years away. [89]
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The main grade of copper used for electrical applications, such as building wire, motor windings, cables and busbars, is electrolytic-tough pitch (ETP) copper (CW004A or ASTM designation C100140). If high conductivity copper must be welded or brazed or used in a reducing atmosphere, then oxygen-free high conductivity copper (CW008A or ASTM ...
It is conducted in two categories Category A (Class 8 to 11) and Category B (Class 12). It is a 6-question subjective examination of 3 hours duration. It is usually held on the first Sunday of November. It is equivalent of the AIME for that particular region. Top 30 (Category A) and 6 (Category B) performers of RMO advance to represent their ...