Предмет: Физика, автор: Edwarddd

физика 11 класс. Заранее спасибо

Приложения:

Ответы

Автор ответа: tana20101997

T=2*pi*sqrt(L/g) L=T^2*g/4*pi^2=4^2*9,8/4*3,14^2=4 м

F=m*a=m*xm*w^2=m*xm*4*pi^2/T^2=0,2*0,05*4*3,14^2/4^2=0,006 H

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Алгебра, автор: strelkod01

Упрости выражение:
(7x+12y)+(8y−12x)+5x

5 лет назад

Предмет: Английский язык, автор: saimanfox015

1) He is here, ...?

a) is he

b) isn't he

c) does he

d) doesn't he

2) My sister asked me, ...?

a) doesn't he

b) didn't he

c) doesn't she

d) didn't she

3) We could not go out,...?

a) doesn't we b) can we

c) could we

d) couldn't we

4) The children were very glad, ... ?

a) were the children b) were they

c) weren't they

d) weren't the

children

5) The students have written the test this year, ...?

a) haven't they b) haven't the students c) have they

d) have the

students

6) The girl listens to the story, ...?

a) do she

b) does she

c) doesn't the girl

d) doesn't she

7) The Browns go to the shop, ...?

a) do they b) don't they

c) do the Browns

d) don't the

Browns

8) They are kind, ...?

a) are they b) don't they

c) aren't they

d) weren't they

9) Jane wasn't in the library, ... ?

a) was she

b) wasn't she

c) was Jane

d) wasn't Jane

10) Jane was in the library,...?

b) was she Jane

b) wasn't she

c) was Jane

d) wasn't

11) The children weren't very glad,...?

a) were the children

b) were they

c) weren't they

d) weren't the

children

12) He didn't come to the club, ... ?

a) did he

b) didn't he

c) does he

d) doesn't he

13) They don't go to the shop,...? a) do they b) don't they

c) does they 14) The cat doesn't drink juice,...?

d) doesn't they

a) doesn't the catb) doesn't it c) does the cat d) does it

15) It isn't dangerous, ... ?

a) is it

b) isn't it

c) does it

d) doesn't it

16) The boys aren't in the work,...?

a) aren't the boys

b) aren't they

c) are they

d) are we

17) We must study at school, ... ?

a) do we

b) mustn't we

c) doesn't we

d) must we

18) You mustn't go there, ... ?

a) do you 19) He has just looked at the blackboard, ... ?

b) mustn't you

c) doesn't you

d) must you

a) has he

b) does he

c) hasn't he

d) doesn't he

20) We could go out, ... ?

a) doesn't we b) can we

c) could we

d) couldn't we

21) Nick would buy a card, ... ?

a) would Nick b) would he

c) wouldn't Nick

d) wouldn't

he

22) Nick wouldn't buy a card, ...?

a) would Nick b) would he

c) wouldn't Nick

d) wouldn't

he

23) Mike hasn't left the hostel yet, ... ? c) has Mike

a) has he b) hasn't he

d) hasn't Mike

24) Mike hadn't left the hostel by 6 o'clock yesterday, ... ? d) hadn't Mike 25) Mike had left the hostel by 6 o'clock yesterday,...? a) had he b) hadn't he a) haven't they b) haven't the students c) have they

a) had he b) hadn't he

c) had Mike

c) had Mike

d) hadn't Mike

26) The students haven't written the test this year, ...?

d) have the

students.

27) Mike can't leave the hostel by 6 o'clock,...?

a) had he

b) can't hel

c) can Mike

d) can he

28) She will take care of her granny in the future, ...?

a) will she b) will not she c) won't she

d) would she

29) They should play in the yard, ... ? b) shouldn't they

a) should they

c) don't they

d) shall not

they

30) Kate can run fast, ... ?

a) can't she

b) can't Kate

c) can she

d) can Kate

5 лет назад

Предмет: Литература, автор: dentrib6

Помогите пожалуйста сделать плиз

5 лет назад

Предмет: Литература, автор: nastusha585

Придумайте свою сказку (большую).

8 лет назад

Предмет: Математика, автор: НуРаиДа1998

Расстояние от Нептуна- одной из планет Солнечной системы-до Солнца равно 4500 млн. км. Как это величина записывается в стандартном виде?

8 лет назад