Предмет: Физика, автор: flgkgj

почему черепахи оказываясь опрокинутыми на спину не могут сами перевернуться

Ответы

Автор ответа: aleksandr1211

0

Перевернутая черепаха представляет собой, как бы тяжелый шаровой сегмент, лежащий на выпуклой поверхности. Такой сегмент очень устойчив, и, чтобы перевернуть его, нужно высоко поднять его центр тяжести. Многие черепахи не могут поднять свой центр тяжести и перевернуться, поэтому погибают, лежа вверх ногами.

если ответ лучший отметь

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Алгебра, автор: Аноним

Решите неравенство методом интервалов :
а) (x-9)(x-1)>0;
b)(x-2)(x-6)(x+11)<0
Помогите пожалуйста отдам 12 баллов

6 лет назад

Предмет: Алгебра, автор: Player1488228

Помогите решить пожалуйста.
1)log13(27); 2) log1/3 3/13 ; 3) lg20+lg50
4)log8 (32) - log8 (4) ; 5) In e*7

6 лет назад

Предмет: Английский язык, автор: dianaramazanov97

Пожалуйста помогите мне

There are many idioms in English that describe how a relationship develops. Match the idioms with their definitions.
1. to hit it off
2. to break the ice 3. to get along with 4. to get to know 5. to warm up to
a. to like someone immediately
b. to have a good relationship
c. to get past the beginning of an introduction d. to begin to like a person
e. to learn more about a person
4

Task 3.
Complete the following sentences with the correct idioms (See Task2) and translate the sentences.
1. At first the employees were nervous about the new director. They thought she was too strict, but after a few months they realized she just wanted the best for the project and they ................. her. 2. I met a lot of people at the conference but I was too busy to ................. anyone very well I hope this year I can follow up and meet with some of these contacts,
3. They met at a stockholders’ meeting and ..................... . Within weeks they were planning a new venture together.
4. The new head of sales does not .................... with his employees. This will have a bad effect on the whole department.
5. On the first day of the seminar the participants all had dinner together ....................
Task 4.
Often the same word base can be used in the verb noun and adjective forms. Some nouns and adjectives have more than one form.
a) Complete the following chart with the missing forms.
Verb adapt
contact
accustom (oneself)
introduce ------------------------------------
Noun
impression information
reference
Adjective adaptable
contacted customary impressive informative introductory referred reputable
b) Complete the following sentences with the correct verb, noun or adjective form of the words in the chart above. Use one form of each word base, and do not repeat any words.
1. She tried to _________ the sales representative, but he never returned her calls.
2. Before doing business in a foreign country, it is useful to learn some of the common
business practices and __________.
3. The young executive wanted to __________ his colleagues, so he dressed his best.
4. We had never bought their products before, so the company gave us a special __________
price,
5. We employed him because he had excellent ____________ from some top people in the
field, but so far his work has not been good.
6. In order to dominate the market, the company now makes computer parts that are ______________ to
all models.
7. The meeting was useful because a lot of new ______________ was presented.
8. It took him forty years to build his _______________ and one night to destroy it. One mistake can
cost a political career.

6 лет назад

Предмет: Геометрия, автор: danilnazdra4ev

МНЕ НУЖНО ПОЛНОЕ РЕШЕНИЕ !!! РАСПИСАНОЕ !!! ПОЖАЛУЙСТА !!!

бічна сторона рівнобедреного трикутника дорівнює 26 см, а висота, проведена до його основи, - 10 см. Знайдіть основу трикутника

9 лет назад

Предмет: Алгебра, автор: Аноним

Помогите пожалуйста, очень срочно нужно, до завтра решить 3 примера!!

9 лет назад