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18 Oktober 2008
Matematika Kelas 9

bagaimana menjelaskan pangkat tak sebenarnya agar mudah dipahami anak?

Salah satu cara menjelaskan pangkat tak sebenarnya sbb:

Misal bilangan berpangkat negatif, 3-3

Diawali dengan arti dari bilangan berpangkat positif, sbb:

 33 = 3.3.3

32 = 3.3 ==> 3.3.3 dibagi 3 (pangkat berkurang 1 berarti dibagi 3)

31 = 3 ==> dari 3.3 dibagi 3

30 = 1 ==> dari 3 dibagi 3

3-1 = 1/3 ==> dari 1 dibagi 3

3-2 = 1/32 ==> dari 1/3 dibagi 3

dan seterusnya.

Sehingga secara umum a-n = 1/an

atau 1/an = a-n

dan √a = a1/2 atau a1/2 = √a

Demikian semoga puas

 

 


Drs. Sudarsono, M.Ed

18 Oktober 2008
Inaz
Bahasa Inggris Kelas 9

Minta tolong buatin report text tentang ice cream donk.. Terima kasih sebelumnya.

Ice cream or ice-cream (originally iced cream) is a frozen dessert made from dairy products, such as milk and cream, combined with flavorings and sweeteners, such as sugar, and possible other ingredients. This mixture is stirred slowly while cooling to prevent large ice crystals from forming; the result is a smoothly textured ice cream. In the United States, ice cream made with just cream, sugar, and a flavoring (usually fruit) is sometimes referred to as "Philadelphia style"[1] ice cream. Ice creams made with eggs, usually in the form of custards, are "French" ice creams.[2]Frozen custard, frozen yogurt, sorbet, gelato, and other similar products are sometimes informally called ice cream, but governments generally regulate the commercial use of these terms based on quantities of ingredients.[3] American federal labeling standards require ice cream to contain a minimum of 10% milk fat (about 7 grams (g) of fat per 1/2 cup [120 mL] serving) and 20% total milk solids by weight.Ice cream may have the following composition: Greater than 10% milkfat and usually between 10% and as high as 16% fat in some premium ice creams: 9 to 12% milk solids-not-fat: this component, also known as the serum solids, contains the proteins (caseins and whey proteins) and carbohydrates (lactose) found in milk: 12 to 16% sweeteners: usually a combination of sucrose and glucose-based corn syrup sweeteners: 0.2 to 0.5% stabilizers and emulsifiers: 55% to 64% water which comes from the milk or other ingredients.[5] These compositions are percentage by weight. Since ice cream can contain as much as half air by volume, these numbers may be reduced by as much as half if cited by volume. In terms of dietary considerations, however, the percentages by weight are more relevant. Even the low fat products have high caloric content: Ben and Jerry's No Fat Vanilla Fudge contains 150 calories per half cup due to its high sugar content  
Operator


18 Oktober 2008
Inaz
IPA Kelas 9

Ini adalah salah satu soal untuk olimpiade astronomi tingkat astronomi. Karena di sekolah saya tidak mempelajari astronomi, saya agak kesulitan mengerjakan soal-soal tsb, karena itu saya mohon bantuannya untuk menjawab soal berikut. 1. Jika matahari mengorbit galaksi Bima Sakti periodenya 240 juta tahun dan jari-jari orbitnya 1,8 x 10^9 SA (Satuan Astronomi), maka masa galaksi Bima Sakti kira-kira adalah... Pilihan jawaban: a. 10^27 x massa matahari b. 10^16 massa matahari c. 10^11 massa matahari d. 10^-11 massa matahari Terima kasih sebelumnya.

Konsep ini dapat dijawab dengan gerak melingkar

 

F gravitasi = F sentripetal

G M m / R2 = m v2 R

 

M = (v2R)/G

 

 = (2∏)2 R3 / (T2 G)

 =  5 x 1012  kg

Coba deh dik Inaz silakan dihitung dengan  

dengan G = 6,67 x 1011

m matahari = 1,9 x 1030 kg

T = 240 tahun

R = 1,8 x 109 SA

 

Semoga menjadi bahan latihan ya 

 

 


Operator

18 Oktober 2008
Bahasa Inggris Kelas 9

maaf,saya minta tolong diberi contoh pidato bahasa inggris tentang sumpah pemuda dgn durasi 5 menit. sya mohon tolong bantu saya secepatnya,karena akan digunakan untuk besok terimakasih

Trimakasih atas partisipasinya, tapi mhn maaf kami disini ditugaskan untuk membantu siswa bila ada materi pelajaran bahasa Inggris SMP yang belum paham , terlebih dalam menghadapi ujian. jadi bukan untuk membuatkan PR atau tugas sekolah tanpa siswa mencoba lebih dahulu. Jadi silakan mencoba membuat dulu sebisanya, kirimkan ke kami, nanti kami bantu untuk mamperbaikinya. Kalau anda hanya butuh contoh, anda bisa buka materi Bahasa Inggris SMP di KBS ini. Kami sudah memberikan banyak contoh. Selamat mencoba. Thanks


Operator

17 Oktober 2008
nani
Bahasa Inggris Kelas 9

Ibu/Bapak, kalo boleh tahu darimana Ibu/Bapak mendapatkan teks report ini? Terima Kasih Text 4CatsThe cat (Felis catus), also known as the domestic cat or house cat to distinguish it from other felines, is a small predatory carnivorous species of crepuscular mammal that is valued by humans for its companionship and its ability to hunt vermin, snakes and scorpions. It has been associated with humans for at least 9,500 years. A skilled predator, the cat is known to hunt over 1,000 species for food. It can be trained to obey simple commands. Individual cats have also been known to learn on their own to manipulate simple mechanisms, such as doorknobs. Cats use a variety of vocalizations and types of body language for communication, including meowing, purring, hissing, growling, squeaking, chirping, clicking, and grunting.[6] With 69 million of them present in American homes,[7] cats are the most or the second most popular pets in that country. Cats also may be the most popular pet in the world, with over 600 million in homes all over the world.[8] They are also bred and shown as registered pedigree pets. This hobby is known as the \"Cat Fancy\".Cats typically weigh between 2.5 and 7 kg (5.5–16 pounds); however, some breeds, such as the Maine Coon, can exceed 11.3 kilograms (24.9 lb). Some have been known to reach up to 23 kilograms (51 lb) due to overfeeding. Conversely, very small cats (less than 1.8 kilograms (4.0 lb)) have been reported. The largest cat ever was officially reported to have weighed in at about 21.297 kilograms (46.952 lb) (46 lb 15.25 oz). Cat senses are attuned for hunting. Cats have highly advanced hearing, eyesight, taste, and touch receptors, making the cat extremely sensitive among mammals. Cats\' night vision is superior to humans although their vision in daylight is inferior. Humans and cats have a similar range of hearing on the low end of the scale, but cats can hear much higher-pitched sounds, up to 64 kHz, which is 1.6 octaves above the range of a human, and even one octave above the range of a dog. A domestic cat\'s sense of smell is about fourteen times as strong as a human\'s. To aid with navigation and sensation, cats have dozens of movable vibrissae (whiskers) over their body, especially their face. Due to a mutation in an early cat ancestor, one of two genes necessary to taste sweetness may have been lost by the cat family.

Kami mendapatkan teks tersebut dari internet.Banyak sekali teks yang bisa kita dapatkan dari sana.Tq
ENDANG TRININGSIH


17 Oktober 2008
Gita
Bahasa Inggris Kelas 12

Tlg bri sy pnjlasan lgkap ttg report. Krn,di forum in ad yg trptog pnjlsnx. Tlg jlskn dlm bhs inggris n trjmahanx y?dkmpl 17-10-08..thanks

Dear Gita,

 REPORT TEXT ini hampir mirip dengan DESCRIPTIVE TEXT. Kedua teks tesebut sama – sama berfungsi untuk mendeskripsikan. Tapi, tetep aja kedua teks tersebut berbeda. Biar tahu perbedaannya, let’s take a look at the example below!

 

REPORT TEXT

GENERIC STRUCTURE

Eagles are large birds of prey which mainly inhabit Eurasia and Africa. Outside these two areas, just two species (the Bald and Golden Eagles) can be found in North America - (north of Mexico), a few species in Central and South America, and three others in Australia.

General Classsification

Eagles are differentiated from other birds of prey mainly by their larger size, more powerful build, and heavier head and bill. Even the smallest eagles, like the Booted Eagle (which is comparable in size to a Common Buzzard or Red-tailed Hawk), have relatively longer and more evenly broad wings, and more direct, faster flight. Most eagles are larger than any other raptors apart from the vultures. Like all birds of prey, eagles have very large powerful hooked beaks for tearing flesh from their prey, strong legs, and powerful talons. They also have extremely keen eyesight to enable them to spot potential prey from a very long distance. This keen eyesight is primarily contributed by their extremely large pupils which cause minimal diffraction (scattering) of the incoming light.

Description

Yap, setelah lihat contoh diatas, jadi tahu khan ya perbedaan antara REPORT dan DESCRIPTIVE text. Perbedaan yang jelas terlihat adalah GENERIC STRUCTUREnya. Seperti kital ihat dalam contoh, REPORT TEXT mempunyai struktur sebagai berikut

  1. General Classification: tells what the phenomenon under discussion is ( Pernyataan secara umum yang menjelaskan tentang objek yang dideskripsikan. Keterangan, dan klasifikasinya).
  2. Description : tells what phenomenon under discussion is like in terms of parts, qualities, habits, or behaviors (if living) or uses (if non-natural) (Memberikan penjelasan tentang hal yang dideskripsikan. kalau hal yang dideskripsikan merupakan benda hidup maka bisa dideskripsikan bgian – bagiannya, kualitasnya, kebiasaanya, atau perilakunya. Kalau benda mati maka yang dideskripsikan adalah kegunannya)

Secara jelas, perbedaan antara REPORT dan DESCRIPTIVE adalah STRUKTURnya seperti yang kita lihat diatas. Tapi ada perbedaan yang lebih signifikan antara kedua teks tersebut. Seperti dalam contoh, kita melihat bahwa REPORT mendeskripsikan suatu hal yang umum. Dari contoh diatas, kita melihat bahwa yang dideskripsikan adalah EAGLES secara umum. REPORT tidak mendeskripsikan sesuatau hal yang spesifik. Nah, DESCRIPTIVE adalah teks yang mendeskripsikan sesuatu secara khusus. Seperti contoh dalam teks DESCRIPTIVE kemarin, Golden Gate adalah hal yang khusus, tidak seperti EAGLES yang dijelaskan secara umum. Ok, setelah kita melihat GENERIC STRUCTURE dari teks ini sekarang kita akan lihat COMUNICATIVE PURPOSE dari teks REPORT yaitu : To describe the way things are with reference to a range of natural, man – made and social phenomenon in our environment. (Menyampaikan informasi tentang sesuatu, apa adanya, sebagai hasil pengamatan. Yang dideskripsikan dapat meliputi gajala alam, lingkungan, benda buatan manusia, atau gejala-gejala sosial). Next, kita akan lihat LEXICOGRAMMAR FEATURES dari teks REPORT ini. Berdasar contoh teks REPORT diatas, maka LEXICOGRAMMAR FEATURES teks ini adalah sebagai berikut :

a. Focus on generic participants (Fokus pada hal yang dideskripsikan secara umum)

b. Use of Present Tense (Unless extinct) (Pengunaan Present Tense kecuali kalau benda itu sudah punah)

Ok, itu adalah salah satu contoh dan pembahasan tentang REPORT TEXT.
Operator

17 Oktober 2008
Gita
Bahasa Inggris Kelas 12

Tlg bri sy pnjlasan lgkap ttg report. Krn,di forum in ad yg trptog pnjlsnx. Tlg jlskn dlm bhs inggris n trjmahanx y?dkmpl 17-10-08..thanks

Dear Gita,

REPORT TEXT ini hampir mirip dengan DESCRIPTIVE TEXT. Kedua teks tesebut sama – sama berfungsi untuk mendeskripsikan. Tapi, tetep aja kedua teks tersebut berbeda. Biar tahu perbedaannya, let’s take a look at the example below!

 

REPORT TEXT

GENERIC STRUCTURE

Eagles are large birds of prey which mainly inhabit Eurasia and Africa. Outside these two areas, just two species (the Bald and Golden Eagles) can be found in North America - (north of Mexico), a few species in Central and South America, and three others in Australia.

General Classsification

Eagles are differentiated from other birds of prey mainly by their larger size, more powerful build, and heavier head and bill. Even the smallest eagles, like the Booted Eagle (which is comparable in size to a Common Buzzard or Red-tailed Hawk), have relatively longer and more evenly broad wings, and more direct, faster flight. Most eagles are larger than any other raptors apart from the vultures. Like all birds of prey, eagles have very large powerful hooked beaks for tearing flesh from their prey, strong legs, and powerful talons. They also have extremely keen eyesight to enable them to spot potential prey from a very long distance. This keen eyesight is primarily contributed by their extremely large pupils which cause minimal diffraction (scattering) of the incoming light.

Description

Yap, setelah lihat contoh diatas, jadi tahu khan ya perbedaan antara REPORT dan DESCRIPTIVE text. Perbedaan yang jelas terlihat adalah GENERIC STRUCTUREnya. Seperti kital ihat dalam contoh, REPORT TEXT mempunyai struktur sebagai berikut

  1. General Classification: tells what the phenomenon under discussion is ( Pernyataan secara umum yang menjelaskan tentang objek yang dideskripsikan. Keterangan, dan klasifikasinya).
  2. Description : tells what phenomenon under discussion is like in terms of parts, qualities, habits, or behaviors (if living) or uses (if non-natural) (Memberikan penjelasan tentang hal yang dideskripsikan. kalau hal yang dideskripsikan merupakan benda hidup maka bisa dideskripsikan bgian – bagiannya, kualitasnya, kebiasaanya, atau perilakunya. Kalau benda mati maka yang dideskripsikan adalah kegunannya)

Secara jelas, perbedaan antara REPORT dan DESCRIPTIVE adalah STRUKTURnya seperti yang kita lihat diatas. Tapi ada perbedaan yang lebih signifikan antara kedua teks tersebut. Seperti dalam contoh, kita melihat bahwa REPORT mendeskripsikan suatu hal yang umum. Dari contoh diatas, kita melihat bahwa yang dideskripsikan adalah EAGLES secara umum. REPORT tidak mendeskripsikan sesuatau hal yang spesifik. Nah, DESCRIPTIVE adalah teks yang mendeskripsikan sesuatu secara khusus. Seperti contoh dalam teks DESCRIPTIVE kemarin, Golden Gate adalah hal yang khusus, tidak seperti EAGLES yang dijelaskan secara umum. Ok, setelah kita melihat GENERIC STRUCTURE dari teks ini sekarang kita akan lihat COMUNICATIVE PURPOSE dari teks REPORT yaitu : To describe the way things are with reference to a range of natural, man – made and social phenomenon in our environment. (Menyampaikan informasi tentang sesuatu, apa adanya, sebagai hasil pengamatan. Yang dideskripsikan dapat meliputi gajala alam, lingkungan, benda buatan manusia, atau gejala-gejala sosial). Next, kita akan lihat LEXICOGRAMMAR FEATURES dari teks REPORT ini. Berdasar contoh teks REPORT diatas, maka LEXICOGRAMMAR FEATURES teks ini adalah sebagai berikut :

a. Focus on generic participants (Fokus pada hal yang dideskripsikan secara umum)

b. Use of Present Tense (Unless extinct) (Pengunaan Present Tense kecuali kalau benda itu sudah punah)

Ok, itu adalah salah satu contoh dan pembahasan tentang REPORT TEXT.
Operator

17 Oktober 2008
Agista
Bahasa Inggris Kelas 12

Sy pux tugas klmpk ttg REPORT.n mnjlskn d dpn klz. Bgmn skp sy s\'t mnjlskn,apkh brdri kaku smbl mmbc? N tlg br sy prtanyaan ttg REPORT bsrta jwbnx,on english n translate kan..ok. Dkmpl 17-10-08.tlg cpt y?thanks

Dear Agista

Maaf, kami hanya bisa menjelaskan pengertian tkes REPORT saja dan contohnya. Kami tidak bersedia menterjemahkannya.

REPORT TEXT ini hampir mirip dengan DESCRIPTIVE TEXT. Kedua teks tesebut sama – sama berfungsi untuk mendeskripsikan. Tapi, tetep aja kedua teks tersebut berbeda. Biar tahu perbedaannya, let’s take a look at the example below!

 

REPORT TEXT

GENERIC STRUCTURE

Eagles are large birds of prey which mainly inhabit Eurasia and Africa. Outside these two areas, just two species (the Bald and Golden Eagles) can be found in North America - (north of Mexico), a few species in Central and South America, and three others in Australia.

General Classsification

Eagles are differentiated from other birds of prey mainly by their larger size, more powerful build, and heavier head and bill. Even the smallest eagles, like the Booted Eagle (which is comparable in size to a Common Buzzard or Red-tailed Hawk), have relatively longer and more evenly broad wings, and more direct, faster flight. Most eagles are larger than any other raptors apart from the vultures. Like all birds of prey, eagles have very large powerful hooked beaks for tearing flesh from their prey, strong legs, and powerful talons. They also have extremely keen eyesight to enable them to spot potential prey from a very long distance. This keen eyesight is primarily contributed by their extremely large pupils which cause minimal diffraction (scattering) of the incoming light.

Description

Yap, setelah lihat contoh diatas, jadi tahu khan ya perbedaan antara REPORT dan DESCRIPTIVE text. Perbedaan yang jelas terlihat adalah GENERIC STRUCTUREnya. Seperti kital ihat dalam contoh, REPORT TEXT mempunyai struktur sebagai berikut

  1. General Classification: tells what the phenomenon under discussion is ( Pernyataan secara umum yang menjelaskan tentang objek yang dideskripsikan. Keterangan, dan klasifikasinya).
  2. Description : tells what phenomenon under discussion is like in terms of parts, qualities, habits, or behaviors (if living) or uses (if non-natural) (Memberikan penjelasan tentang hal yang dideskripsikan. kalau hal yang dideskripsikan merupakan benda hidup maka bisa dideskripsikan bgian – bagiannya, kualitasnya, kebiasaanya, atau perilakunya. Kalau benda mati maka yang dideskripsikan adalah kegunannya)

Secara jelas, perbedaan antara REPORT dan DESCRIPTIVE adalah STRUKTURnya seperti yang kita lihat diatas. Tapi ada perbedaan yang lebih signifikan antara kedua teks tersebut. Seperti dalam contoh, kita melihat bahwa REPORT mendeskripsikan suatu hal yang umum. Dari contoh diatas, kita melihat bahwa yang dideskripsikan adalah EAGLES secara umum. REPORT tidak mendeskripsikan sesuatau hal yang spesifik. Nah, DESCRIPTIVE adalah teks yang mendeskripsikan sesuatu secara khusus. Seperti contoh dalam teks DESCRIPTIVE kemarin, Golden Gate adalah hal yang khusus, tidak seperti EAGLES yang dijelaskan secara umum. Ok, setelah kita melihat GENERIC STRUCTURE dari teks ini sekarang kita akan lihat COMUNICATIVE PURPOSE dari teks REPORT yaitu : To describe the way things are with reference to a range of natural, man – made and social phenomenon in our environment. (Menyampaikan informasi tentang sesuatu, apa adanya, sebagai hasil pengamatan. Yang dideskripsikan dapat meliputi gajala alam, lingkungan, benda buatan manusia, atau gejala-gejala sosial). Next, kita akan lihat LEXICOGRAMMAR FEATURES dari teks REPORT ini. Berdasar contoh teks REPORT diatas, maka LEXICOGRAMMAR FEATURES teks ini adalah sebagai berikut :

a. Focus on generic participants (Fokus pada hal yang dideskripsikan secara umum)

b. Use of Present Tense (Unless extinct) (Pengunaan Present Tense kecuali kalau benda itu sudah punah)

Ok, itu adalah salah satu contoh dan pembahasan tentang REPORT TEXT.
Operator

17 Oktober 2008
Fian
Bahasa Inggris Kelas 12

tolong donk kasih tau contoh texs explonation??? minta ya contoh teksny...

Dear Fian,

Terima kasih atas pertanyaanya. Sebelumnya kami berikan contoh-contoh EXPLANATION TEXTS 

 

Tsunami
The term of “tsunami” comes from the Japanese which means harbour ("tsu") and wave ("nami"). A tsunamigk is a series of waves generated when water in a lake or the sea is rapidly displaced on a massive scale.

A tsunami can be generated when the sea floor abruptly deforms and vertically displaces the overlying water. Such large vertical movements of the earth's crust can occur at plate boundaries.

Subduction of earthquakes are particularly effective in generating tsunamis, and occur where denser oceanic plates slip under continental plates.

As the displaced water mass moves under the influence of gravity to regain its equilibrium, it radiates across the ocean like ripples on a pond.

Tsunami always bring great damage. Most of the damage is caused by the huge mass of water behind the initial wave front, as the height of the sea keeps rising fast and floods powerfully into the coastal area. (simplified from www.panda.org)

How Day and Night Happen

The sun seems to rise in the morning, crosses the sky during the day and sets at night. However the sun does not actually move around the earth. Earth's turning on its axis makes it look as if the sun is moves.
The earth makes a complete turn on its axis for 24 hours. It is called as rotation. It causes day and night. The earth also moves around the sun. It takes 365 days or a year. This process is called revolution. The revolution process causes the changes of the season


Why Summer Daylight is Longger than Winter Daylight

In the summer, the amount of daylight that we get is more than we get in winter. This is not because as much people think we are closer to the sun but because of the tilt of the earth.
The earth is actually closer to the sun in winter than it is in summer but you would be forgiven for thinking that this can not be true after looking out of your window on a cold and frosty morning.
It seems strange that as the earth get closer to the sun during its orbit then the amount of daylight that we get decrease. But that is the case. It is the tilt of the earth that determine the amount of daylight that we get and so the length of time that for us the sun is above the horizon.
(Taken from: www.ictteachers.co.uk)

Generic Structure Analysis
General statement; stating the phenomenon whic daylight in summer is longer than in winter.
Explanation; it is the tilt of the earth that determines the amount of daylight not the distance of the earth from the sun.
Language Feature Analysis
Focusing generic participant; daylight.
Using chronological connection; then, so, but.
Using pasive voice; you would be forgiven.
Using present tense; the earth is actually closer to the sun.


What is Explanation?

Explanation Text

Definition and purposes of Explanation
Explanation is a text which tells processes relating to forming of natural, social, scientific and cultural phenomena. Explanation text is to say 'why' and 'how' of the forming of the phenomena. It is often found in science, geography and history text books.

Generic structure of Explanation
General statement; stating the phenomenon issues which are to be explained.
Sequenced explanation; stating a series of steps which explain the phenomena.

Language Feature
Featuring generic participant; sun, rain, etc
Using chronological connection; to begin with, next, etc
Using passive voice pattern
Using simple present tense

 


Operator

17 Oktober 2008
Fian
Bahasa Inggris Kelas 12

tolong donk kasih tau contoh texs explonation??? minta ya contoh teksny...

Dear Fian,

Pertanyaan anda sudah kami jawab. 


Operator

 

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