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In radio astronomy, the unit of electromagnetic flux is the jansky (symbol Jy), equivalent to 10 −26 watts per square metre per hertz (= 10 −26 kg/s 2 in base units, about 8.8×10 −31 BTU/ft 2). It is named after the pioneering radio astronomer Karl Jansky. The brightest natural radio sources have flux densities of the order of one to one ...
At 26,338 square kilometres (10,169 sq mi), Rwanda is the world's 149th-largest country. [2] It is comparable in size to Haiti or the state of Massachusetts in the United States. [ 3 ] [ 4 ] The entire country is at a high altitude: the lowest point is the Rusizi River at 950 metres (3,117 ft) above sea level.
In addition to coastline lengths, this is the source of the land area used to calculate the "coast/area ratio" for both TWF and WRI (see below) coastline measurement. This ratio measures how many metres of coastline correspond to every square kilometer of land area. The ratio illustrates the ease of accessibility to the country's coast from ...
The population density was 5,158.2 people per square mile (1,991.6 people/km 2). About 24% of the population was 19 or younger, 9% were 20 to 24, 31% were 25 to 44, 25% were 45 to 64, and 11% were 65 or older.
is the analysis of the relationships between different physical quantities by identifying their base quantities (such as length, mass, time, and electric charge) and units of measure (such as miles vs. kilometers, or pounds vs. kilograms) and tracking these dimensions as calculations or comparisons are performed.
Arizona has a total area of 113,998 square miles (295,253 km 2), making it the sixth largest U.S. state. [1] Of this area, just 0.3% consists of water, which makes Arizona the state with the second lowest percentage of water area (New Mexico is the lowest at 0.2%). [ 1 ]
The island is about 300 km (186 mi) from the African coast, and approximately 1,000 km (621 mi) from the Iberian Peninsula. [75] Tenerife is the largest island of the Canary Islands archipelago, with a surface area of 2,034.38 km 2 (785 sq mi) [ 76 ] and has the longest coastline, amounting to 342 km (213 mi).
Interstate 30 (I-30 [a]) is a major Interstate Highway in the southern states of Texas and Arkansas in the United States. I-30 travels 366.76 miles from I-20 west of Fort Worth, Texas, northeast via Dallas, and Texarkana, Texas, to I-40 in North Little Rock, Arkansas.