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Определите силу трения,если тело массой 1,5 т под действием силы тяги 900Н приобрело ускорение 0.4 м/с2
заранее спасибо)-
Предмет:
Физика -
Автор:
muffinvj3y - 6 лет назад
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Ответы 3
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Да , но F это сумма сил, а когда пректируешь получаетсято, что я написала
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Автор:
sydneeholden - 6 лет назад
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0
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Дано:m=1500кг, Fтяг=900Н, М=0, 4, найти Fтр
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Автор:
maldonado - 6 лет назад
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0
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Спасибо большое:)
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Автор:
emilywilliams - 6 лет назад
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0
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Пожалуйста! Составьте 5 вопросов разного типа к тексту!
(Желательно с ответами)
Many
thousands of years ago there were no houses such as people live in
today. In hot countries people sometimes made their homes in the trees
and used leaves to protect themselves from rain or sun. In colder countries
they dwelt in caves. Later
people left their caves and trees and began to build houses out of different
materials such as mud, wood or stones. Later
people found out that bricks made of mud and dried in the hot sunshine
became almost as hard as stones. In
ancient Egypt especially, people learned to use these sun- dried mud
bricks. Some of their buildings are still standing after several thousands of
years.
The
ancient Egyptians discovered how to cut stone for building purposes. They
erected temples, palaces and huge tombs. The greatest tomb is the stone
pyramid of Khufu, king of Egypt. The ancient Egyptians often erected
their huge constructions to commemorate their kings or pharaohs.
The
ancient Greeks also understood the art of building with cut stone, and
their buildings were beautiful as well as useful. They often used pillars,
partly for supporting the roofs and partly for decoration. Parts of these
ancient buildings can still be seen today in Greece.
Whereas
the ancient Greeks tried to embody the idea of harmony and pure beauty in their
buildings, the Roman architecture produces the impression of
greatness, might, and practicalness.
The
Romans were great bridge, harbour and road builders. In road works the Romans
widely used timber piles. They also erected aqueducts, reservoirs,
water tanks, etc. Some of their
constructions are used till now. It
is known that the manufacture of lime is one of the oldest industries used by
man.-
Предмет:
Английский язык -
Автор:
myladickerson - 6 лет назад
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Ответов:
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Напишите пожалуйста соченение "Путь" Л.Гурунц
1) «Художественный текст заставляет обратить внимание не только и не столько на то, что сказано, но и на то, как сказано». (Е. В. Джанджакова)
2)Докажите прелогательно, самое живописное передать содержание расказа, дополнив его описанием расказа от лица ручейка
3)Жизненый путь- не лёгкая прогулка!
Зарание СПАСИБО!!!
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