Предмет: Физика, автор: Sweetcheeks

Диск диаметром 0.6 м совершает 20 оборотов в минуту. Найдите период, частоту и угловую скорость вращения диска, а также скорость и ускорение точек на его ободе.!!!!!!!! ПОМОГИТЕ

Ответы

Автор ответа: xuoda

T = t / N = 60 / 20 = 3 с

ν = 1 / T = 1 / 3 ~ 0.33 Гц

ω = 2π/T = 6.28 / 3 ~ 2 рад/с

V = ωR = 2 * 0.3 = 0.6

a = Vω = 0.6 * 2 ~ 1.2 м/с²

Sweetcheeks: СПАСИБО ОГРОМНОЕ!!!!!!!!!!!!!!)))))

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: berdikozaevakadisa

s unfriendly and serious, but the Time Traveller is surprised. He thought that people from the sfuture / past would be very 6stupid / intelligent, but they aren't. s. 4. Make nouns using the suffixes in the box. Then read the text again and check your answers. Because they didn't try to speak to me, but simply stood smiling and speaking 3__ to each other, I began the conversation. I pointed to the Time Machine and to myself. Then, after thinking for a moment how to describe time, I to the sun. At once, a pretty little figure dressed in purple and white did the same and then made the sound of 5 For a moment I was very surprised, though the meaning of his movement was clear enough. The question had come into my mind suddenly: were these people _? I had always expected that people living about 800,000 years in the future would have much greater knowledge than us in science, art - everything. But one of them had asked me a very simple question, which showed him to be on the level of intelligence of one of our five-year-old children. He had asked me, in fact, if I had come from the sun in a thunderstorm! A feeling of sadness came into my mind. For a moment, I felt that I had built the Time Machine for no reason at all. -ation -ness -ence -ing -ment Verbs 1 mean 2 move Adjectives 5 pretty 6 intelligent 7 sad 8 different 1 3 Converse 4 feel 5 Look at the texts on pages 17, 29, 41,53 and 77 and find verbs and adjectives. Then make nouns from these words using suffixes. Use a dictionary to help you. What other noun suffixes are there? wet-wetness 6 ACTIVATE Complete the sentences with a noun. Use suffixes from exercise 4. Which suffixes do you use to form nouns in your language? Give examples. 1 The ending spoiled my — of the book. (enjoy) 2 She felt a strange — as she walked into the empty house. (sense) 3 People had a difficult — during the war. (exist) 4 I could sense her. (happy) 5 I'd like to see a horror film. Have you got any L? (recommend) - CLIL 65

6 лет назад

Предмет: Английский язык, автор: anastasihehova

помогите с заданием пожалуйста даю 57 баллов!!

6 лет назад

Предмет: Литература, автор: snizananovicka1

де любить спати гном з вірша гном у буфе

6 лет назад

Предмет: Математика, автор: biber0014

5x+(-1-x)=-8x-8 решите

9 лет назад

Предмет: Литература, автор: огниво2

Перисказать главу 13 кратко ,, Незнайка и его друзья''.

9 лет назад