Đặt câu hỏi cho phần in nghiêng:

1.I'm going to stay in a hotel

=> Where are you going to stay?

2.The weather is very cold in the winter in Russia

=> How is the weather in the winter in Russia?

phương linh Xem mình làm đúng không nhé! Mình làm có vài câu khác.

1.You're capable ..of...passing the exam the exam if you try harder

capable of: tốt, giỏi
2.You're responsible....for..the parents for thesafty of their children

responsible for: có trách nhiệm
3.He's just taken an exam.....at....Chemistry

4.Jehny speaks French so she acted .as... our interpeter

5.She's fed up.with...this weather

fed up with: chán

4.5+4/11

8.7-4.3

=16

  11

duyệt đi

đặt ngược lại

=aaaax3:a+6667

=aaaa:ax3+6667

=1111x3+6667

=3333+6667

=10000

6000 ngươì 

ủng hộ nha

Tóm tắt:

\(s=3km=3000m\)

\(t_1=20p'=1200s\)

\(F=200N\)

_______________

a) \(P_{cs}=?\)

b) \(t_2=5p'=300s\)

\(A_2=?\)

Giải:

a) Công suất của con ngựa thực hiện trong 20 phút là:

\(P_{cs}=\dfrac{A_1}{t_1}=\dfrac{F.s}{t_1}=\dfrac{200.3000}{1200}=500\left(W\right)\)

b) Công của con ngựa thực hiện trong 5 phút là:

\(A_2=P_{cs}.t_2=500.300=150000\left(J\right)\)

Vậy ...

Tóm tắt:

\(v=36km/h\Leftrightarrow\left\{{}\begin{matrix}t=1h=3600s\\s=36km=36000m\end{matrix}\right.\)

\(P_{cs}=4200W\)

___________________________

a) \(P=F.v\)

b) \(F=?\)

Giải:

a) Công suất của xe máy là:

\(P_{cs}=\dfrac{A}{t}=\dfrac{F.s}{t}=F.\dfrac{s}{t}=F.v\)

b) Công của xe máy thực hiện trong một giờ là:

\(A=P_{cs}.t=4200.3600=15120000\left(J\right)\)

Lực kéo của động cơ xe là:

\(F=\dfrac{A}{s}=\dfrac{15120000}{36000}=420\left(N\right)\)

Vậy ...

I. USE THE CORRECT FORM OF THE WORLD GIVEN IN EACH SENTENCE.
1) THEIR TIME SPENT IN THE COUNTRYSIDE PROVODED THE.......inspiration..................FOR THEIR NOVELS.(INSPIRE)
2) the newspaper is published.......daily...................you can get it everyday.( day)
3)i never receive any ..............responses.......to my email from her.(respond)
4) may..............sightseers........waled around the tourist attraction to take photos.(sight)
5)what were the reasons for the worldwide........................economic.........crisis?( economy)
6) we should make the most efforts to stop......deforestation.................(forest)
II. use the correct tense or form of the verb given in each sentence.
1)in the last ten years, life in our city.....changed....................( change) dramatically.
2)she will tell him about the news when he ..........phones.............(phone) her tomorrow morning.
3)they..............were planting..........(plant)roses in the garden when i came to see them.
4) thank you for ..................looking....................(look) after mt grandpa while i was away last week.

tap hop cac gia tri nguyen cua x thoa man (x^2+4x+13) chia het cho x+4 co so phan tu la 4