35. All the milk was poured out

36. When he come,the problem had been solved

37. We was made to work late at night

38. What will I do if I am not met at the airport ?

39. Everybody weren't showed how to do

40. A new bridge has just been built in the area.

Câu 35.

\(\xi_b=\xi=9V\)

\(r_b=\dfrac{r}{n}=\dfrac{r}{2}=\dfrac{2}{2}=1\Omega\)

\(R_Đ=\dfrac{U^2_Đ}{P_Đ}=\dfrac{3^2}{3}=3\Omega\)

\(R_{tđ}=\dfrac{R_1\cdot R_2}{R_1+R_2}+R_Đ=\dfrac{10\cdot10}{10+10}+3=8\Omega\)

Chọn A.

Câu 36.

\(I_Đ=I_m=\dfrac{\xi_b}{r_b+R_{tđ}}=\dfrac{9}{1+8}=1A\)

\(I_{Đđm}=\dfrac{P_Đ}{U_Đ}=\dfrac{3}{3}=1A\)

Vậy đèn sáng bình thường.

Chọn B

Câu 37.

\(U_2=U_{12}=I_{12}\cdot R_{12}=I\cdot R_{12}=1\cdot5=5V\)

\(I_2=\dfrac{U_2}{R_2}=\dfrac{5}{10}=0,5A\)

\(Q_{R_2tỏa}=R_2\cdot I_2^2t=10\cdot0,5^2\cdot2\cdot60=300J\)

Không có đáp án!!!

Câu 38.

Công suất trên toàn mạch:

\(P=\xi\cdot I=9\cdot1=9W\)

Điện năng sản ra trong toàn mạch 5 phút:

\(A=P\cdot t=9\cdot5\cdot60=2700J\)

Chọn C.

Câu 40.

Hiệu suát nguồn:

\(H=\dfrac{R_{tđ}}{r+R_{td}}=\dfrac{8}{1+8}=88,89\%\approx89\%\)

Chọn B

1 Has your homework been finished

2 Why wasn't he helped

3 How many game have been played by the team

4 Where is English spoken?

5 Who is being kept in the kitchen

6 How can this safe be opened

7 What books are being read this year

8 How was the lost man found by the police

9 By whom are the children looked after for you

10 How long has the doctor been waited

11 What time can their papers be handed in by the boys

12 By whom are you lent this book

13 How many marks are given to you by the teacher

bn chụp rung và mờ lắm

36A (Reported speech)

37B

39C

= 61 x 41 + 41 x 39

= 41x(61 + 39)

= 41x100

=4100

Bài làm:

( 37 +24) .41 +( 50 -9) .39

= 61 .41 +41 .39

= 41 ( 61 +39)

= 41 .100

=4100

# Học tốt:))

\(\left(37+24\right).41+\left(50-9\right).39\)

\(=61.41+41.39\)

\(=41.\left(61+39\right)\)

\(=41.100=4100\)

37. They used to go to school by bike when they were young

38. Quang suggested that they sould visit the Royal Citadel first

39. The car was too expensive for my dad to buy

40. My teacher told me to follow his instruction if I wanted to pass that module

38 Quang suggested that the Royal Citadel should be visited first 

39 The car was too expensice for my dad to buy

40 My teacher told me to follow his instructions if I wanted to pass this module

37 He suggested that Sue buy that picture as an anniversary present for Jack

38 You know the man who sat next to me at the meeting last night, don't you?

39 Covid 19 prevented us from travelling to Da Lat

40 If I had much money, I could buy that house immediately