Предмет: Физика, автор: Rb225

Маховик радиусом r =0,5 м вращается с угловой скоростью, изменяющейся по закону ω=5t рад/с. Линейная скорость точек на ободе маховика в момент времени t=4 с равна:

Ответы

Автор ответа: navizor9

1

Ответ:

10 м/с = 36 км/ч

Объяснение:

v=wtr

-_-_-_-_---__-_

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: lenabugaenko72

найдите в этом тексте 3 предложения в прошедшем обычном
The day of the surfing competition was hot and
sunny. The waves were very big but Nick was a strong swimmer and his new board was good. He sat on it in the water and waited.
A big wave arrived and Nick started to swim strongly. Nick caught the wave well and stood up on his board. The people on the beach watched - it was exciting to watch. Suddenly Nick heard a noise.
A surfboard hit his right arm. He fell from his board. A second big wave hit him and he saw Brian`s board coming at him.
His head went underthe water. The water was in his mouth. His arm was hurt. He started to swim but it was not easy.
||
He sat down on his board and moved slowly towards the beach. He was tired and it was difficult to move his right arm. When he arrived he put his board under his left arm. He could hardly walk
People looked at him. Some of them started to talk to him, but he didn`t want to talk. He sat on the beach and looked at the waves.
Janelle walked across the beach to him. "Why did you fall, Nick? That was a good wave? and you caught it very well..."
It was Brain. He came at me on his board and hit me. I hurt my arm-but perhaps it was an accident
An accident? I don`t think so. I saw him - he cut across you. It was very dangerous
Well, I lost the competition. Brain has won-it`s goodbye to my plans to go to Australia before coolege

1 год назад

Предмет: Английский язык, автор: nadja9711

Open
the brackets and use the Gerund, the Participle or the Infinitive with or
without participle "to".

1.
Then
she stopped suddenly ... (remember) the presence of the children.

2. Suddenly she felt the need ... (speak).

3. We finished ... (dress) and went to the
kitchen.

4. The students ... (work) in our village came
from Kyiv.

5. We must ... (stay) at home. We have lost our
keys. 6.I don't mind ... (tell) you
about it.

1 год назад

Предмет: Русский язык, автор: sorochinskayaal

Пролетело жаркое лето...Пришел сентябрь. После августовских тёплых дней наступила золотая осень.
По опушкам лесов растут ещё подосиновики,сыроежки и душистые рыжики. на старых больших пнях жмутся тонконогие опенки...
1. обведи слова ,употреблённые в переносном значении. Выпиши словосочетания прилагательных с существительными во множественном числе. выдели окончания.

1 год назад

Предмет: Математика, автор: DAMMA13

(-14,3-(-5,4))-(-5/6+(-2 5/12)
(Это две целых пять двенадцатых)

8 лет назад

Предмет: Математика, автор: ayhangezalov04

Выберите и запишите наибольшую из десятичных дробей: 9,8 10,14 10,3 9,4

8 лет назад