Предмет: Физика, автор: nelly69

10 класс помогите решить : брусок массой М =300 г соединен с бруском массой m=200 г нитью перекинутой через блок . Чему равен модуль ускорения бруска массой 200 г ?

Ответы

Автор ответа: Аноним

mg=(m+M)*a - 2 закон Ньютона

a=mg/(m+M)

a=0,2*10/(0,2+0,3)=2/0,5=4 м/с² - это ответ.

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Английский язык, автор: lesha123pro

Final test 7 form Khotsky school
1.What______ last weekend?
A did you do B are you do C have you done D you did
2.What _____tomorrow night?
A are you doing B do you do C you do D are you do
3. It`s the most interesting film ______!
AI saw B I ever saw C I`ve ever seen D I`m ever seeing
4.If you_____ him, he`ll give you a piece of advice.
A write B will write C are writing D have written
5.We ____in the sun all day yesterday.
A lay B had lain C were laying D had been laying
6.They`ll move to France when their baby________
A will born B is being born C is born D would be born
7. She speaks English ______than me.
A more better B better C more well D so better
8. Can you tell me where________?
A the post office is B is the post office C the post office D post office
9.Look at the brochure. The show _____at 8.30
A starts B is starting C will start D start
10. If we ______we`ll catch the bus.
A to hurry B hurry C are hurry D will hurry
11.We`ve got a sofa_______ is also a bed.
A which B who C where D-
12.It`s cold.- I_____ the window.
A `ll close B am going to close C would close D am closing
13.What were you doing when you______ the text?
A were getting B got C get D getting

14.What time _____ you go to bed last night?
A were B had C went D did
15. I _____ my work at last! Now I can have a rest.
A would finish B finished C have finished D had finished
16. Jenny is only eighteen but she has ______ written two plays.
A yet B ever C never D already
17.Ouch! I`ve ____ cut my finger.
A already B yet C just D ever
18.I ____ you later if you like.
A I am helping B `ll help C `m going to help D help
19.If we _____we`ll catch the bus
A to hurry B hurry C are hurrying D will hurry
20.Everything`s free, so you ___bring any money.
A have to B can`t C needn`t D must
21.It _____ in the north tomorrow.
A will be raining B will rain C rains D is raining
22.I ___ to go out today.
A I`m not wanting B don`t want C not want D haven`t wanted
23.He told me that there _____ an accident the day before.
A has been B was C had been D is
24.They ______ the computer by Wednesday.
A had repaired B were repairing C had been repairing D repaired
ПОМОГИТЕ УМОЛЯЮ

5 лет назад

Предмет: Математика, автор: vladgalahov1146

Помогите пожалуйста!!!!!!!

5 лет назад

Предмет: Обществознание, автор: perchik82

Верное суждение или нет
Конституция - закон прямого действия, потому что для защиты прав гражданину не нужно обращаться к другому закону

5 лет назад

Предмет: География, автор: Seva7777

Согласны ли вы с утверждением древнегреческого путешественника о том, что ,,Египет-это дар Нила"? Обоснуйте свой ответ.
Заранее спасибо) Даю 25 баллов

9 лет назад

Предмет: Информатика, автор: dianaishakova

277 из 8 перевести в 10 систему счисления

9 лет назад