Answer: Hot air is less dense than cool air; the heated air causes the balloon to rise simply because it is lighter than an equal volume of cold air. Buoyancy is an upward force that the air exerts, and it helps hot-air balloons and blimps stay in the air. A hot air balloon uses a burner to heat up the air inside the balloon.
The first estate were tax except
Answer: The idea of Satyagraha emphasized upon the power of truth and the need to search for truth. ... Through non-violent methods a Satyagraha could appeal the conscience of the oppressor by the power of truth, which was bound to win.
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The Vietnam War (Vietnamese: Chiến tranh Việt Nam), also known as the Second Indochina War,[60] and in Vietnam as the Resistance War Against America (Vietnamese: Kháng chiến chống Mỹ) or simply the American War, was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955[A 1] to the fall of Saigon on 30 April 1975.[15] It was the second of the Indochina Wars and was officially fought between North Vietnam and South Vietnam. North Vietnam was supported by the Soviet Union, China,[19] and other communist allies; South Vietnam was supported by the United States, South Korea, the Philippines, Australia, Thailand and other anti-communist allies.[61][62] The war, considered a Cold War-era proxy war by some,[63] lasted 19 years, with direct U.S. involvement ending in 1973, and included the Laotian Civil War and the Cambodian Civil War, which ended with all three countries becoming communist in 1975.