Предмет: Физика, автор: angibaevasevincoj

Определите линейную и угловую скорости тела находящегося на земном экваторе .Радиус Земли приблизительно равен 6400км
Не надо переводить м/с пусть остается км/ч
Пожалуйста Помогите

Ответы

Автор ответа: ruqiyaakmalova10

Ответ:

Ω=2π/T, где ω-угловая скорость, T- период вращения Земли вокруг своей оси.

T=24 часа *60 минут=1440 минуты* 60 секунд=86400 секунд

ω=2*3,14/86400 секунд≈0,0000726

V=ωr, где V-линейная скорость,ω-угловая скорость,r-радиус

V=0,0000726*6400000 м=464,64 м/c

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: Полли116

разберите
слово листья по звуко буквеным

1 год назад

Предмет: Английский язык, автор: niklyubushkin

Решите плес. Complete each sentence with one of the words below. One word is odd out. ill healthy competition support necessary injury mascot keep fit sore luck practise 1. Jason should take part in the swimming … . 2. I … my skills every day in the garden or down in the fields. 3. And I feel bad, I’ve got a … throat. 4. Becky always looks really … .She must get lots of exercises. 5. That’s why I try to do my best not to get … - I take vitamins, in spring and autumn especially, and do sports to keep fit. 6. The choice of a … for the 1st World Youth Games in Moscow was a very difficult problem. 7. Vitamin C is … for building bones and teeth. 8. We did our best but lost it. We were out of … . 9. About 20 million people fill the stadiums every year to … their favourite players. 10. People of all ages and types do exercises at home to improve their health and to … . II. Complete the sentences. Example: Can she run …? (quick / quickly) Can she run quickly? 1. James can speak German quite … (fluent / fluently), and his language is … (correct / correctly). 2. He returned again to his … (day / daily) routine on the farm. 3. “Why are you speaking very … (loud / loudly)?” – “Because how beautiful is here!” 4. When I was 22 years old, I came home from work, put a leash on my dog and went for my … (usual / usually) walk. 5. My mother opened the door … (careful / carefully), and she loaded the laundry into the machine. 6. We stop for a … (quick / quickly) commercial break, and then we come back to the traditional systems. III. Complete the sentences. 1. Tim came home very … (late / lately) yesterday. His parents worried about him a lot. 2. They … (hard / hardly) ever make mistakes. 3. In South Korea and Indonesia women own … (near / nearly) half a million firms. 4. Try to eat more fruits and vegetables. It’s … (high / highly) useful for you. 5. You haven’t been to the gym … (late / lately). Are you all right? IV. Complete the sentences: put the adjectives or adverbs in brackets in appropriate form. Example: He works … at English than his friend. (hard) He works harder at English than his friend. 1. This is … (short) way to the station. 2. Mr Smith is not so … (talented) as Mr Jack’s son. 3. I can’t hear you. Could you speak a little … (loud), please. 4. Everyone in the race ran fast, but John ran … (fast) of all. 5. Could you explain the point … (clear)? 6. Please hang the picture … (high). 7. Tom’s dictation was good. But mine was … (bad) in the class. V. Answer the questions. 1. Do you go in for sports? 2. What do you do / should you do to keep fit? 3. Why do people need vitamins? 4. Have you ever visited a doctor? What problem(s) did you have? 5. What is the symbol of the Olympic Games? What does this symbol mean?

1 год назад

Предмет: Английский язык, автор: Puritan

вставить пропущенное слово.
... out! The dog is very big and angry!

варианты:
1. look
2. watch
3. listen