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36.1 2023 37.92 2022 India: Southern Asia: Lower middle income 32.8 2021 37.06 2022 Ireland: Northern Europe: High income 30.1 2021 30.29 2022 29.1 2021 Iran: Southern Asia: Upper middle income 34.8 2022 40.94 2020 Iraq: Western Asia: Upper middle income 29.5 2012 47.20 2013 Iceland: Northern Europe: High income 26.1 2017 26.27
The second revision (1937) of the Stanford–Binet test retained "quotient IQ" scoring, despite earlier criticism of that method of reporting IQ test standard scores. [64] The term "genius" was no longer used for any IQ score range. [ 65 ]
A solubility equilibrium exists when a chemical compound in the solid state is in chemical equilibrium with a solution containing the compound. This type of equilibrium is an example of dynamic equilibrium in that some individual molecules migrate between the solid and solution phases such that the rates of dissolution and precipitation are equal to one another.
A 1 inch tall uranium fuel pellet is equivalent to about 1 ton of coal, 120 gallons of crude oil, or 17,000 cubic feet of natural gas. [15] In light-water reactors , 1 kg of natural uranium – following a corresponding enrichment and used for power generation– is equivalent to the energy content of nearly 10,000 kg of mineral oil or 14,000 ...
It was first calculated by William Shockley and Hans-Joachim Queisser at Shockley Semiconductor in 1961, giving a maximum efficiency of 30% at 1.1 eV. [1] The limit is one of the most fundamental to solar energy production with photovoltaic cells, and is one of the field's most important contributions. [2]
Harvard Economist Robert Barro created what he dubbed the "Barro Misery Index" (BMI), in 1999. [3] The BMI takes the sum of the inflation and unemployment rates, and adds to that the interest rate, plus (minus) the shortfall (surplus) between the actual and trend rate of GDP growth.
This is a list of articles about prime numbers.A prime number (or prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. By Euclid's theorem, there are an infinite number of prime numbers.
Population density (persons per square km), as of 1 July Country/dependent territory 2030 2040 2050 2075 2100 Afghanistan * 71.5: 84.1: 94.9: 110.0: 107.8 Albania * 107.1: 103.4