Fill the suitable number in the blank.
\(\rho\)\(-1+3\rho=-1+...\times\rho\)
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29 tháng 1 2024 lúc 21:35
Chứng minh định luật Becnuli:
Trong sự chảy ổn định của chất lỏng, tổng áp suất trọng lực, áp suất tĩnh và áp suất động luôn được bảo toàn.
\(p_p+p_t+p_đ=const\Leftrightarrow p_1+\rho gh_1+\dfrac{1}{2}\rho v_1^2=p_2+\rho gh_2+\dfrac{1}{2}\rho v_2^2\)
Bạn tham khảo nhé: https://phys.libretexts.org/Bookshelves/University_Physics/University_Physics_(OpenStax)/Book%3A_University_Physics_I_-_Mechanics_Sound_Oscillations_and_Waves_(OpenStax)/14%3A_Fluid_Mechanics/14.08%3A_Bernoullis_Equation
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Tìm p \(\in\rho\), biết p + 4 và p + 2 \(\in\rho\).
P là tập hợp các số nguyên tố nhé.
Exam number 2: Fill in the blank with the suitable numberQuestion 1: Find x such that x + 34 99Question 2: Write the missing number in the blankQuestion 3: Calculate: 123 + 456Question 4: Write in numbers Nine hundred and twenty – twoQuestion 5: Each box has 12 color pencils. How many pencils are in 3 of these boxes?Question 6: Two apples weight 100 gram. Then ten apples weight ....gram.Question 7: Write the missing number in the blankQuestion 8: Write the missing number in the blankQuestion 9:...
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Exam number 2: Fill in the blank with the suitable number
Question 1: Find x such that x + 34 = 99
Question 2: Write the missing number in the blank
Question 3: Calculate: 123 + 456
Question 4: Write in numbers "Nine hundred and twenty – two"
Question 5: Each box has 12 color pencils. How many pencils are in 3 of these boxes?
Question 6: Two apples weight 100 gram. Then ten apples weight ....gram.
Question 7: Write the missing number in the blank
Question 8: Write the missing number in the blank
Question 9: There are 56 students lining up in rows, there 7 students in each row. How many rows are there?
Question 10: The perimeter of rectangle ABCD is 20cm and the length of segment AB is 6cm. What is the length of segment BC?
1. x+34 = 99
⇔ x = 65
2. ko thấy đề
3. 123+456 = 579
4. 922
5. 12x3 = 36
6. 500
7. ko thấy đề
8. ko thấy đề
9. 56:7 = 8
10. 4 cm
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Toán tiếng anh?
1.
x = 99 - 34
x = 65
2. Bài toán hình vuông ở đâu?
3. 579
4 . 922
5. Số bút chì trong 3 hộp là: 12 x 3 = 36 (bút chì)
6. - Số gam khối lượng quả táo là: 100: 2 = 50 (gam)
- Số gam của mười quả táo nặng là : 50 x 10 = 500 (gam)
7. Bài toán hình vuông ở đâu?
số 8 . Tôi không thể nhìn thấy vấn đề toán học này.
9. Số học sinh của mỗi hàng là: 56: 7 = 8 (học sinh)
10. Độ dài đoạn thẳng BC là: 20 - 6 : 2 = 4 ( cm )
I like this math problem :>*
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một giọt dầu hình cầu bán kính R nằm lơ lửng trong không khí trong đó có điện trường đều, vectơ CĐĐT hướng từ trên xuống và có độ lớn E, biết khối lượng riêng của dầu và không khí lần lượt là ρd, ρkk (ρd > ρ kk), gia tốc trọng trường là g. điện tích q của quả cầu là?
Vì giọt dầu nằm lơ lửng cân bằng thì trọng lực \(\overline{P}\), lực Archimedes \(\overline{F_a}\) của dầu và lực điện \(\overline{F_e}\) phải cân bằng nhau
\(\Rightarrow\overline{P}+\overline{F_a}+\overline{F_e}=0\)
Vì \(P>F_a\) nên lực \(F_e\) phải có chiều hướng lên nên giọt dầu mang điện tích \(q< 0\)
\(\Rightarrow F_e=P-F_a\Rightarrow\left|q\right|E=mg-VP_{kk}g=g\left(m-VP_{kk}\right)=\left(VP_d-VP_{kk}\right)=Vg\left(P_d-P_{kk}\right)\)\(\Rightarrow\left|q\right|E=\left(P_d-P_{kk}\right)\frac{4\pi R^3}{3}\)
Mà \(q< 0\)
\(\Rightarrow q=\frac{4\pi R^3\left(P_{kk}-P_d\right)}{3E}\)
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Fill in the blank with the suitable sign (; ;)Question 1:To compare: .Fill in the blank with the suitable numberQuestion 2:If then .Question 3:Add: .Question 4:Add: .Question 5:Add: .Question 6:Fill the suitable in the following blank..Question 7:In your class, there are 54 students and there are 32 boy students.How many girl students are there in your class?Answer: There are girl students. .
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Fill in the blank with the suitable sign (>; =;<)
Question 1:
To compare: .
Fill in the blank with the suitable number
Question 2:
If then .
Question 3:
Add: .
Question 4:
Add: .
Question 5:
Add: .
Question 6:
Fill the suitable in the following blank.
.
Question 7:
In your class, there are 54 students and there are 32 boy students.
How many girl students are there in your class?
Answer: There are girl students.
.
Question 7:In your class, there are 54 students and there are 32 boy students.How many girl students are there in your class?Answer: There are 12 girl students. .
Mấy câu kia đâu
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the missing number in the blank 1;2;5;14;...
the missing number in the blank 1;3;7;15;...
Giải nhanh nhanh mình tick liền
a)the missing number is 41
b)the missing number is 31
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\(tan\left(\frac{\rho}{4}\left(cosx-sinx\right)\right)=1\)
\(tan\left(\frac{\pi}{4}\left(cosx-sinx\right)\right)=1\)
\(\Leftrightarrow\frac{\pi}{4}\left(cosx-sinx\right)=\frac{\pi}{4}+k\pi\)
\(\Leftrightarrow cosx-sinx=1+4k\)
\(\Leftrightarrow\sqrt{2}cos\left(x+\frac{\pi}{4}\right)=1+4k\)
\(\Leftrightarrow cos\left(x+\frac{\pi}{4}\right)=\frac{1+4k}{\sqrt{2}}\)
Do \(-1\le cos\left(x+\frac{\pi}{4}\right)\le1\Rightarrow-1\le\frac{1+4k}{\sqrt{2}}\le1\) \(\Rightarrow k=0\)
\(\Rightarrow cos\left(x+\frac{\pi}{4}\right)=\frac{1}{\sqrt{2}}\)
\(\Leftrightarrow\left[{}\begin{matrix}x+\frac{\pi}{4}=\frac{\pi}{4}+k2\pi\\x+\frac{\pi}{4}=-\frac{\pi}{4}+k2\pi\end{matrix}\right.\)
\(\Leftrightarrow\left[{}\begin{matrix}x=k2\pi\\x=-\frac{\pi}{2}+k2\pi\end{matrix}\right.\)
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Fill in the blank with a suitable word
One of the advantage of (1)........................... is that they can work in situations that are (2)......................... or harmful for human workers. Today there (3)..........................millions of the people who work at machines in the (4)................................ .Robots will (5)................................ them. Part of the problem will be solved because (6)............................... the decrease in the number of births. Th...
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Fill in the blank with a suitable word
One of the advantage of (1)........................... is that they can work in situations that are (2)......................... or harmful for human workers. Today there (3)..........................millions of the people who work at machines in the (4)................................ .Robots will (5)................................ them. Part of the problem will be solved because (6)............................... the decrease in the number of births. There will be fewer people (7).................for jobs(8)........................people will find changes in (9)..................... jobs, and they will not like (10)............of them.
GIÚP MK VS CẦN GẤP LẮM T^T!!
Fill in the blank with a suitable word
One of the advantage of (1)........................... is that they can work in situations that are (2)......................... or harmful for human workers. Today there (3)..........................millions of the people who work at machines in the (4)................................ .Robots will (5)................................ them. Part of the problem will be solved because (6)............................... the decrease in the number of births. Th...
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Fill in the blank with a suitable word
One of the advantage of (1)........................... is that they can work in situations that are (2)......................... or harmful for human workers. Today there (3)..........................millions of the people who work at machines in the (4)................................ .Robots will (5)................................ them. Part of the problem will be solved because (6)............................... the decrease in the number of births. There will be fewer people (7).................for jobs(8)........................people will find changes in (9)..................... jobs, and they will not like (10)............of them.
GIÚP MK VS CẦN GẤP LẮM T^T!!