The two example of Supersonic aircraft are Concorde
developed by UK and France which travelled from NY and London exceeding Mach
(the speed of sound). It was retired following a bad accident. The most famous
supersonic plane is the SR-71 Blackbird spy plane developed by Lockheed. A
supersonic airplane is simply one that is capable of flying faster than the
speed of sound, which is about 760 miles per hour.
Answer:
It is a negative ion that has one more valence electron than a neutral bromine atom.
Explanation:
The bromine atom (Br) accepts one electron and forms the bromide ion (Br-), which carries a unit negative charge. Thus, the charge of the bromide ion is -1.
Bromine is corrosive to human tissue in a liquid state and its vapors irritate eyes and throat. Bromine vapors are very toxic with inhalation. Humans can absorb organic bromines through the skin, with food and during breathing. Organic bromines are widely used as sprays to kill insects and other unwanted pests.
Its salts are found in the crust at about . 4 parts per million. Bromine is only the 64th most common element on Earth. It is more rare than three quarters of the elements that comprise the Earth's crust
bromine is commonly found in highly un-reactive bromide salts - in much the same way that the poisonous green gas chlorine is commonly found in boring sodium chloride, table salt. ... Today, bromine is extracted on an industrial scale from salt lakes that are especially rich in the element, above all the Dead Sea
Answer: Cold War, the open yet restricted rivalry that developed after World War II between the United States and the Soviet Union and their respective allies. The Cold War was waged on political, economic, and propaganda fronts and had only limited recourse to weapons.
Explanation:
Cold War | Summary, Causes, History, & Facts | Britannicahttps://www.britannica.com › ... › International Relations
This is the site I got this info from. I hope this helps!
The main reason as to why the pan-africanists create the “Exhibit
of American Negroes” during the 1900 World’s fair was because of the fact that
they would want to fight the idea of racism by which the Africans were said to
be primitive.
Hamburg is the largest city in Europe that is not the capital of a country.
