A piece of wood is to be sawed into 6 smaller similar pieces.if a cut eliminates 2% of wood as sawdust , what is volume of a small piece related to the volume of the original piece?

LV

lưu viết vĩ

6 tháng 4 2016 - olm

#Toán lớp 8

1

NT

Nguyễn Trọng Tấn

29 tháng 7 2016

Một mảnh gỗ được xẻ thành 6 pieces.if tương tự nhỏ hơn một cắt loại bỏ 2 của gỗ như mùn cưa khối lượng của một mảnh nhỏ liên quan đến khối lượng của các mảnh ban đầu là gì?

bạn nào giải thì giải đi,mình dịch ra rồi này

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LV

lưu viết vĩ

6 tháng 4 2016 - olm

A piece of wood is to be sawed into 6 smaller similar pieces.if a cut eliminates 2% of wood as sawdust , what is volume of a small piece related to the volume of the original piece?

#Toán lớp 8

0

LT

Lê Trần Ngọc Nghĩa

23 tháng 9 2021

He is carving this flower out of the piece of wood. (carved)

#Tiếng anh lớp 9

0

NH

Nguyễn Hoàng Oanh

24 tháng 12 2015 - olm

Get a piece of paper cut into 4 pieces. Get a piece that you have just cut cut into 4 pieces. So on many times.
a) When to stop cutting follow the rule above, can we be obtained 2012 pieces of it?
b) How many times do we cut to obtain 52 pieces of paper?

#Toán lớp 6

2

HT

hoang thi le quynh

24 tháng 12 2015

sorry mk ko thành thạo tiếng anh cho lắm nên mk ko giải đc bạn giỏi tiếng anh như vậy thì dịch thành tiếng việt đi có thể mk sẽ làm đc

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VN

Vu Ngoc Hanh

24 tháng 12 2015

dịch nè bn nào giỏi toán thì trả lời nha mình chỉ bít tiếng Anh thôi ko giỏi toán:

Lấy 1 tờ giấy(mảnh giấy) cắt thành 4 mảnh. Lấy 1 mảnh mà bạn vừa cắt cắt ra 4 mảnh . Lặp lại nhiều lần.

a) Khi ngưng cắt theo quy trình trên, chúng ta có thể có 2012 mảnh từ nó ko?

b)Chúng ta cắt bao nhiu lần thì được 52 mảnh giấy?

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B

_Banhdayyy_

27 tháng 10 2021

Choose the best option A, B, C or D to complete each of the following sentences.Question 8. The flower was _____________ out of a single piece of valuable wood. A. carved B. moulded C. cast D. givenQuestion 9. In this town, they _____________ all the frames in steel. A. make B. have C. mould D. castQuestion...

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Choose the best option A, B, C or D to complete each of the following sentences.

Question 8. The flower was _____________ out of a single piece of valuable wood.

A. carved B. moulded C. cast D. given

Question 9. In this town, they _____________ all the frames in steel.

A. make B. have C. mould D. cast

Question 10. She is skilled at _____________ cloth.

A. giving B. weaving C. doing D. carving

Question 11. If you like, I can _____________ flowers on the cushion covers for you.

A. grow B. make C. embroider D. knit

Question 12. Is it true that you _____________ this woolen hat yourself?

A. knitted B. wove C. did D. carved

Question 13. The doll has been _____________ out of clay.

A. embroidered B. cast C. woven D. moulded

Question 14. I love going to this place _____________ it’s the quietest place in the city.

A. so B. though C. so that D. as

Question 15. They keep changing the decoration of the shop _____________ they can attract more young people.

A. so that B. because C. although D. when

Question 16. This city has one of the most ___________ underground rail networks in the world.

A. efficient B. fashionable C. cosmopolitan D. fascinated

#Tiếng anh lớp 9

1

MN

minh nguyet

27 tháng 10 2021

Question 8. The flower was _____________ out of a single piece of valuable wood.

A. carved B. moulded C. cast D. given

Question 9. In this town, they _____________ all the frames in steel.

A. make B. have C. mould D. cast

Question 10. She is skilled at _____________ cloth.

A. giving B. weaving C. doing D. carving

Question 11. If you like, I can _____________ flowers on the cushion covers for you.

A. grow B. make C. embroider D. knit

Question 12. Is it true that you _____________ this woolen hat yourself?

A. knitted B. wove C. did D. carved

Question 13. The doll has been _____________ out of clay.

A. embroidered B. cast C. woven D. moulded

Question 14. I love going to this place _____________ it’s the quietest place in the city.

A. so B. though C. so that D. as

Question 15. They keep changing the decoration of the shop _____________ they can attract more young people.

A. so that B. because C. although D. when

Question 16. This city has one of the most ___________ underground rail networks in the world.

A. efficient B. fashionable C. cosmopolitan D. fascinated

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TH

Thu Hoang Anh

30 tháng 10 2021

II. PRONUNCATION, VOCABULARY, GRAMMAR 1. Choose the most suitable word or word phrase by circing A, B, C, or D 1 The flower was (carved/cast/moulded/given) out of a single piece of valuable wood 2 This sport centre is so small that it can not (keep up with/face up to/deal about/set up) the demands of the local residents 3 She's the most famous artisan in the village (when/although/because/in order that) she's young 4 My father didn't allow me to go out, so I had to (close down/turn down/turn...

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#Tiếng anh lớp 9

1

MN

minh nguyet

30 tháng 10 2021

1. Choose the most suitable word or word phrase by circing A, B, C, or D
1 The flower was (carved/cast/moulded/given) out of a single piece of valuable wood
2 This sport centre is so small that it can not (keep up with/face up to/deal about/set up) the demands of the local residents
3 She's the most famous artisan in the village (when/although/because/in order that) she's young
4 My father didn't allow me to go out, so I had to (close down/turn down/turn up/come back) Lan's invitation
5 Japan is the (most second/second in most/second most/two most) developed country in the Wold
6 This city has one of the most (fashionable/cosmopolitan/fascinated/effident) underground rail networks in the world
2. Use the correct form of the words given in brackets
1 What's the (small)_smallest__country in the world? - I think it's Monaco
2 Many people move to the city because they enjoy the pleasant and (convenience)___convenient_life there
3 I was (disappointment)__disappointed_as the film was less entertaining than I had expected
4 He drove (careful)__carelessly_ last week, so he had an accident

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T

thăng

16 tháng 2 2020

SECTION III: READING (5.0 points) Part 1: Read the following passage and choose the correct answer to each of the following questions. Write your answer (A, B, C, or D) in the numbered boxes. Since ancient times, one of the most common materials people have utilized to make things with is wood. Wood is used to make houses, buildings, and other structures. People also make a large number of smaller objects with it. The desire to make finished products more beautiful appears to be ingrained...

Đọc tiếp

SECTION III: READING (5.0 points)
Part 1: Read the following passage and choose the correct answer to each of the following
questions. Write your answer (A, B, C, or D) in the numbered boxes.
Since ancient times, one of the most common materials people have utilized to make things
with is wood. Wood is used to make houses, buildings, and other structures. People also
make a large number of smaller objects with it.
The desire to make finished products more beautiful appears to be ingrained in huma n
nature. On account of this fact, for thousands of years, people have carved and shaped
wooden objects to make them more appealing to the eye. Humans have additionally tended
to create both religious and ceremonial objects from wood. In fact, all around the world,
countless cultures have made use of ceremonial wood carvings. These objects often reflect
the spirit of the people who made them, and each of them tends to hold a special
significance as well.
One of the most common types of wood carvings is the mask. People in many cultures in
Asia, Africa, and North America have made ceremonial wooden masks. In Africa, for
instance, large numbers of tribes use wooden masks for vari ous spiritual rituals. These
masks are often in the form of animals that are sacred to the tribes. In other cases, the masks
have human forms. The faces, however, may not be exactly humanlike. For instance, the
faces can be distorted, having wider, longer, smaller, or larger features than normal. The
masks may be carved to give them ugly or frightening appearances as well. And, on other
occasions, the masks are made to look as beautiful as possible.
While masks tend to be fairly small, other wood carvings can be enormous. Among the
largest of all ceremonial wood carvings is the totem p ole. Totem poles have been built by
several Native American tribes that reside in the northwestern part of North America. They
are normally made to represent families, or they may honor significant historical events.
Some even tell stories. A typical totem pole has several individual carvings on it. Each
carving represents a different part of the family history, event, or story. Most totem poles
have human or animal faces, as well as other figures, carved in them. They are so large that
they are made from e ntire trees. Once the trees are cut down, master craftsmen work on
them. When completed, they may or may not be painted. Then, the totem poles are
positioned in places of honor and placed upright.

1. What is this passage mainly about?
A. The ways wood can be used to make buildings B. The purposes of masks in some cultures
C. The types of wood carvings some people make D. Totem poles and their significance
2. In line 4, the word ingrained is closest in meaning to _________.
A. embedded B. disturbed C. initiated D. consistent
3. Why have some people carved wooden objects?
A. To give them to others as gifts B. To worship them as idols
C. To employ them as weapons D. To utilize them in ceremonies
4. In line 14, the phrase sacred to is closest in meaning to _________.
A. important to B. hunted by C. revered by D. necessary for
5. What does the author say about masks?
A. They always resemble human faces. B. It takes a great deal of effort to make them.
C. People make them on several continents. D. Animal masks are more popular than human ones.
6. The author uses totem poles as an example of _________.
A. wood carvings that are large in size B. a type of wood carving older than masks
C. the most impressive of all wood carvings D. the wood carvings favored by all Native Americans
7. In line 22, the word they refers to _________.
A. several Native American tribes B. totem poles C. families D. significant historical events
8. What does the author imply about wood carvings?
A. They take years to learn how to make. B. They are expensive to buy.
C. They need special types of wood. D. They may vary in size.
9. The author mentions all of the following about totem poles EXCEPT _________.
A. what they look like B. what they represent
C. which trees are used to make them D. who usually carves them

#Tiếng anh lớp 9

0

HN

Hồng Nhung Love Stella Solaria

19 tháng 2 2016 - olm

A rectangular paper is 5/4m long and 1/2m wide. Peter cuts it into many pieces. Each piece is a square with the side of 1/4. How many piece does he cut?

#Toán lớp 4

1

HN

Hồng Nhung Love Stella Solaria

22 tháng 2 2016

chu hình chữ nhật là:5/4*1/2=5/8

chu vi hình vuông là1/4*1/4=1/16

anh ấy cắt đc số mảnh là:5/8:1/16=80/8=10

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LQ

Lê Quỳnh Anh

26 tháng 2 2019

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions Archimedes’s Principle is a law of physics that states that when an object is totally or partially immersed in a fluid, it experiences an upthrust equal to the weight of the fluid displaced. The principle is most frequently applied to the behaviour of objects in water, and helps to explain floating and sinking, and why objects seem lighter in water....

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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions

Archimedes’s Principle is a law of physics that states that when an object is totally or partially immersed in a fluid, it experiences an upthrust equal to the weight of the fluid displaced. The principle is most frequently applied to the behaviour of objects in water, and helps to explain floating and sinking, and why objects seem lighter in water. It also applies to balloons.

The key word in the principle is “upthrust”, which refers to the force acting upward to reduce the apparent weight of the object when it is under water. If, for example, a metal block with a volume of 100 cm³is dipped in water, it displaces an equal volume of water, which has a weight of approximately 1 N (3.5 oz). The block therefore seems to weigh about 1 N less.

An object will float if its average density is less than that of water. If it is totally submerged, the weight of the water it displaces (and hence the upthrust on it) is greater than its own weight, and it is forced upward and out of water, until the weight if water displaced by submerged part is exactly equal to the weight of the floating object. Thus a block of wood with a density six tenths that of water will float with six tenths of its volume under water, since at that point the weight of fluid displaced is the same as the blocks’s own weight. If a dense material is made into a suitable shape, it will float because of Archimedes’s principle. A ship floats, whereas a block of iron of the same mass sinks.

It is also because of Archimedes’s principle that ships float lower in the water when they are heavily loaded (more water must be displaced to give the necessary upthrust). In addition, they cannot be so heavily loaded if they are to sail in fresh water as they can if they are to sail in the sea, since fresh water is less dense than sea water, and so more water must be displaced to give the necessary upthrust. This means the ship is lower in the water, which can be dangerous in rough weather.

From “Archimedes’s Principle”, MicrosoftÒ Student 2008[DVD]. Microsoft Corporation, 2007.

A block of wood with a density seven tenths that of water will ____

A. go up and down the sink

B. float with a half of its volume under water

C. float with an equal volume of its volume under water

D. sink immediately when submerged

#Mẫu giáo

1

DH

Dương Hoàn Anh

26 tháng 2 2019

Đáp án C

C. float with an equal volume of its volume under water

Ý nghĩa của cả câu: “Một khối gỗ có tỉ trọng bảy phần mười tỉ trọng của nước sẽ nổi lên với một thể tích tương đương với thể tích chìm của nước”.

Chúng ta có thể tìm thấy ý này trong câu ba của đoạn 3: “Thus a block of wood with a density six tenths that of water will float with six tenths of its volume under water, since at that point the weight of fluid displaces is the same as the block’s own weight”.

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