Голосование за лучший ответ
Andrey
Ученик
(26)
11 лет назад
автобус, двигаясь равноускоренно в течении 2х сек достигает скорости 6 м/с с которой продолжат движение в течении 4 сек. за последующие 4 сек равнозамедленого движения он остановился. определите путь
Ancient Athenian navy yards kept careful lists of equipment for their trireme fleet. Those lists that survive revealed two different lengths of oar, 13 feet and 13 feet 10 inches, the shorter being used toward the narrow bow and stern of the vessel. Aristotle compared their splayed-out pattern to the fingers of the hand. From Athenian accounts it is clear that a trireme was not for positioning alongside other craft for boarding and capture, in the style of Hollywood sea battles. It was a fast seaborne missile, its ramming beak, reinforced with bronze, being used to hit other craft to hole and flood them. Triremes were day sailors and carried only a handful of soldiers (14 in all) with a partial deck canopy to shield the top oarsmen from sun and rain and from enemy javelins. Oarsmen customarily were free citizens. As the Greek historians Herodotus and Thucydides both relate, the Athenians and their allies, with a brilliant use of triremes, beat off the Persians at the Battle of Salamis in 480 BC. If the Greeks had lost, many ideas of government, of philosophy, of culture taken for granted today would have died with them.