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22 September 2008
halimah
Bahasa Inggris Kelas 12

Tolong berikan satu contoh explanation text.Trima kasih.

how day and night happened 

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

 

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)

Operator

22 September 2008
Tika
Bahasa Inggris Kelas 8

Tolong jelaskan mengenai question tags

QUESTION TAGS -         Your mother likes singing, doesn’t she?-         They can dance, can’t they?-         This is not my book, isn’t it?-         The children were here just now, weren’t they?-         Agnes did not play with them, did she?-         Alfin hasn’t done his homework, has he?-         Tia and Aldo visit their grandma once a week, don’t they? Note and explanation . §         Tag questions are added to sentences to ask for agreement of confirmation. §         If we want to confirm what we have said, we can use question tags as     the example above.§         A question tag sentences usually consist of two parts:     A statement and the question tagHe is a becak driver,                       A statement Isn’t he?                                         A question tag §         If the statement is positive, the question tag is negative§         If the statement negative, the question tag is positive§         Example:Alfin hasn’t done his homework, has he?         Tia and Aldo visit their grandma once a week, don’t they §         We use the same auxiliary verb in the tag question and the answer§         In tag questions, it replaces this/that, everything/something, etc. and they replaces these/those, everyone/everybody, etc.Introductory there has the same form there too.Example:     That is my book, isn’t it?     Something happened with you, didn’t it?     Everybody isn’t ready yet, are they?     There was a dictionary on the table, wasn’t there?      §         The present tense of the verb ‘be’ for the pronoun I:am. --à In the tag ‘am’ becomes aren’t’Example:            I am a good student, aren’t I? Exception:           Let’s go to school, shall we?           Don’t sweep the floor, will you?         §         A tag question may be spoken with a rising intonation if the speaker is truly making sure that his/her information, idea, belief is correct.      The stress is in the question tag.     [ The intonation of each statement should be smooth while the         intonation of each tag should be rising’] 


Operator

22 September 2008
Matematika Kelas 9

luas permukaan bola 38,5 cm, berapa panjang jari-jarinya ?

Luas permukaan bola = 4∏r2

berarti 4∏r2 = 38,5

             r2 = 38,5 : 4∏

             r2 = 38,5 : 4.(22/7)

             r2 = 12,25

             r = √12,25 = 3,5

Jaadi panjang jari-jari bola = 3,5 cm

Demikian semoga puas.Makasih.

 

 


Drs. Sudarsono, M.Ed

22 September 2008
Ardian
Matematika Kelas 9

Volume bola 4851 cm kubik, brp panjang jari-jari dan luas bola tsb?

Volume bola = (4/3) ∏r3

berarti (4/3) ∏r3 = 4851

                  ∏r= 4851 : 4/3

                  ∏r= 3638,25

                    r3 = 3638,25: 22/7

                   r3 = 1157,625

                   r = 10,5

Jadi jari-jari bola = 10,5 cm.

Luas bola = 4 ∏r2 = 4.22/7.10,5.10,5

              = 1386 cm2

Demikian semoga puass. Makasih.

 


Drs. Sudarsono, M.Ed

22 September 2008
spetenta
IPA Kelas 9

pembelahan mirosis itu pembelahan yg bgmn? tlg beri cnthny!

 Dik Spetenta, mungkin salah ketik, kami coba definisi yang lain yaitu mitosis dan meiosis

Mitosis merupakan periode pembelahan sel yang berlangsung pada jaringan titik tumbuh
(meristem), seperti pada ujung akar atau pucuk tanaman. Proses mitosis terjadi dalam
empat fase, yaitu profase, metafase, anafase, dan telofase. Fase mitosis tersebut terjadi
pada sel tumbuhan maupun hewan. Terdapat perbedaan mendasar antara mitosis pada
hewan dan tumbuhan. Pada hewan terbentuk aster dan terbentuknya alur di ekuator pada
membran sel pada saat telofase sehingga kedua sel anak menjadi terpisah.

 

Meiosis hanya terjadi pada fase reproduksi seksual atau pada jaringan nuftah. Pada
meiosis, terjadi perpasangan dari kromosom homolog serta terjadi pengurangan jumlah
kromosom induk terhadap sel anak. Disamping itu, pada meiosis terjadi dua kali periode
pembelahan sel, yaitu pembelahan I (meiosis I) dan pembelahan II (meiosis II). Meiosis I
dan meiosis II terjadi pada sel tumbuhan. Demikian juga pada sel hewan terjadi meiosis I
dan meiosis II. Baik pada pembelahan meiosis I dan II, terjadi fase-fase pembelahan
seperti pada mitosis. Oleh karena itu dikenal adanya profase I, metafase I, anafase I ,
telofase I, profase II, metafase II, anafase II, dan telofase II. Akibat adanya dua kali
proses pembelahan sel, maka pada meiosis, satu sel induk akan menghasilkan empat sel
baru, dengan masing-masing sel mengandung jumlah kromosom setengah dari jumlah
kromosom sel induk.

semoga bermanfaat 


Rudi

21 September 2008
rara
Matematika Kelas 11

minta soal trigonometri dan caranya dumz, banyak yg ga ngerti nih.makasih

download materi ini ya.... lampiran

Drs. Maman Surahman, S.Pd


21 September 2008
vela
Matematika Kelas 11

ada soal olim mtk ga? kalau ada mau dong lampirannya.terima kasih

kami berikan soalnya, silahkan dicoba dulu

down load soal ini yaaaaa

 

lampiran

Drs. Maman Surahman, S.Pd

21 September 2008
lover English
Bahasa Inggris Kelas 10

ass. pengertian generic structure dan jenis-jenisnya dong pa/bu?

generic structure adalah struktur umum/kerangka teks/outline. Tiap-tiap jenis teks mempunyai generic structure sendiri.

Misalnya

Generic structure of narrative text:

1. orientation,

2. complication,

3. resolution.

Gen. Structure of Procedure

1. Aim/goal

2. material/Equipment

3. Steps

dll, masih banyak lagi, silahkan anda membuka arsip jawaban kami. Terima kasih


Operator

21 September 2008
amelia
Matematika Kelas 9

tolong beri tahu aq gmn C cara menemukan volum kerucut & penjelasannya

SUdah dijawab silahkan lihat pada jawaban matematiaka SMP
Operator


21 September 2008
amelia
Matematika Kelas 9

tolong beri tahu aq gmn C cara menemukan volum kerucut & penjelasannya

Pertanyaan sudah dijawab, silahkan lihat di jawaban matematika SMP. Makasih.
Operator


 

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