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10115 Data founds

sebuah pegas dengan panjang 20 cm digantung vertikal. pada ujung bebas pegas dikaitkan beban 200 gram sehingga pegas bertambah panjang 10 cm. kemudian beban ditarik 5 cm ke bawah dan dilepaskan. jika g = 10 m/s2, maka frekuensi getarannya adalah

Cari nilai k pegas dari data k = F/Δx = 2/0,1 = 20 N/m. Kemudian masukkan pada persamaan frekuensi getaran pegas :

 

f  = (1/2π)√(k/m) = ....


Pelajaran Fisika (SMA) Kelas 12
12-12-2011 bintang
13-12-2011 Winarso, S.Pd

5log125=x-1/2=

Masd Lukman , makasih atas pertanyaannya, akan kami coba

5log125=x-1/2

 5log125 = 5log53  = 3  , jadi 5log125=x-1/2

                                                  3 = x - 1/2

                                                      x = 3,5


Pelajaran Matematika Kelas 10
10-12-2011 lukman
12-12-2011 Drs. Jumadi

Masd Lukman , makasih atas pertanyaannya, akan kami coba

5log125=x-1/2

 5log125 = 5log53  = 3  , jadi 5log125=x-1/2

                                                  3 = x - 1/2

                                                      x = 3,5


Pelajaran Matematika Kelas 10
10-12-2011 lukman
12-12-2011 Drs. Jumadi

5log125=x-1/2=

Masd Lukman , makasih atas pertanyaannya, akan kami coba

5log125=x-1/2

 5log125 = 5log53  = 3  , jadi 5log125=x-1/2

                                                  3 = x - 1/2

                                                      x = 3,5


Pelajaran Matematika Kelas 10
10-12-2011 lukman
12-12-2011 Drs. Jumadi

bapak ibu guru mohon jawab soal ini

1.      Jari-jari dan titik pusat lingkaran 4x² + 4y² - 4x - 12 y + 1 = 0 adlh ?

2.      Lingkaran dgn persamaan x² + y² - 4x - 2y + c = 0 melalui titik (0,-1). Jari-jarinya ?

3.      Jika titik (-5,k) terletak pd lingkaran x² + y² + 2x - 5y - 21 = 0  maka nilai k adlh ?

4.      Garis singgung lingkaran x² + y² = 25 di titik (-3,4) menyinggung lingkaran dgn pusat (10,5) dan jari-jari r. nilai r =

makasih

 

 Mbak ranti makasih atas pertanyaanya dan akan saya coba jawab pertanyaannya  sbb:

1.      Jari-jari dan titik pusat lingkaran 4x² + 4y² - 4x - 12 y + 1 = 0 adlh ?

ini harus dibuat bentuk baku ( semua dibagi 4 ) sehingga menjadi  x² + y² -  x -  3y + 1/4 = 0

Pusat P( 1/2, 3/2) , jari - jari R = V (1/4 +9/4 -1/4 ) = 3/2

2.      Lingkaran dgn persamaan x² + y² - 4x - 2y + c = 0 melalui titik (0,-1). Jari-jarinya ?

x² + y² - 4x - 2y + c = 0 Melalui titik  (0,-1).artinya titik ini memenuhi persamaan lingkaran

0 + 1 -0 +2 + c = 0  , c = -3, sehingga persamaan lingkaran adalah x² + y² - 4x - 2y -3 = 0

Pusat P( 2,1) , jari - jari R = V (4+1+3) = V8 = 2V2

3.      Jika titik (-5,k) terletak pd lingkaran x² + y² + 2x - 5y - 21 = 0  maka nilai k adlh ?

sama dengan no 2 , subtsitusikan saja titik  (-5,k) ke lingkaran x² + y² + 2x - 5y - 21 = 0

25 +k2 -10 -5k -21 = 0 , k2  -5k - 6 = 0

(k +1)(k-6) = 0  ,

k = -1 atau k = 6

4.      Garis singgung lingkaran x² + y² = 25 di titik (-3,4) menyinggung lingkaran dgn pusat (10,5) dan jari-jari r. nilai r =

kita buat dulu persamaan garis singgungnya pada lingkaran didapat -3x + 4y -25 = 0

jaris - jari lingkaran yang dimaksud adala jarak titik  pusat (10,5) ke garis -3x + 4y -25 = 0

r = harga mutlak (( -30 + 20 - 25) / (V32+ 42 )) = (35/5) = 7

 


Pelajaran Matematika Kelas 11
10-12-2011 ranti
12-12-2011 Drs. Jumadi

tolong buatin dong? contoh text hortatory exposition sebanyak  200 kata dalam bahasa inggris

tolong secepatnya ya?soalnya hari minggu sudah dikumpulkan lewat e-mail sama gurunya  

Old Enough?

When a person old enough to be responsible for a crime? This question needs to be investigated because the current law is not good enough
The law at present protects children aged between ten years and four years from being punished for committing crimes. It is believed that children under fourteen years are too young to realize the seriousness of their crimes. Mr. Stephen Scarlett, head of the NSW Children’s Court, describes how clever young offenders use this defense, saying that they are too young to understand that they have broken the law. Mr. Scarlett, an expert on this subject, states that the age should be dropped from fourteen to twelve years. I agree with this.
Teenagers these days are far more sophisticated than those in the past. The law should recognize this. In a recent survey some people suggested that the age for being responsible for a crime should be dropped to eight years old. This, I feel, is too young. Fourteen, however, is too old. Is there anyone who believes that a fourteen-year-old does not know that it is against the law to steal or vandalize property? By the age of twelve, children are aware of what is legal and what is not.
Public pressure creates change. It is now up to the public to put pressure on the government to change the age at which a person may be held responsible for a crime from fourteen years to twelve years. Out of date laws have no place in a modern society, especially one that needs people to be responsible for their actions.


Pelajaran Bahasa Inggris Kelas 11
10-12-2011 widdi
10-12-2011 Wirastuti S.Pd M.Acc

tolong yah

1)  f(x)=x2+2x-24 domain {(x¦-7≤x≥5)}

tentukan:

a. pembuat nol 

b. ttik potong grafik dgn sumbu x

c.ttik potong grafik dgn sumbu y

d. persamaan sumbu sumetri

e. nilai ekstern

f. titik balik

g. range

 

2.) 3kg apel ,2kg mangga harganya 34.000 , 3 kg mangga dan 1kg anggur 39.000

2 kg anggur dan 1 kg apel 36.000

hrga 1 kg anggur dan 1 kg apel dan 1 kg mangga Rp… 

 

3) ½x+¹⁄3y-¹⁄5z=1 hp=.....

4)√11+√7


     √11-√7

Mas Reinaldo, terima kasih atas pertanyaannya , akan kami coba menjawab sbb;

 1. f(x)=x2+2x-24 domain {(x¦-7≤x≥5)},

pembuat nol funfsi itu = titik potong fungsi dengan sumbu X, syarat f(x) = 0

x2+2x-24 = 0

(x + 6) (x - 4) = 0, x = - 6 atau x = 4

titik potong dengan sumbu  Y , x = 0, f(0) = 0 + 2.0 - 24 = - 24

sumbu simetri x = -b/2a = -1, f(-1) = -25

titik baliknya ( -1,-25)

 x = -7 , f(-7) = 11 

x = 5 , f(5) = 11 ( mohon dicek ya mas ????)  , rangenya -25 ≤x≥11

2. misalkan banyaknya ; apel = x mangga = y,  anggur = z, maka akan ada persamaan

3x + 2y = 34.000

3y + z = 39.000

x + 2z = 36.000 ( silahkan  diselesaikan dengan metode elimasi atau subtsitusi , nanti akan ketemu x , y dan z )

 3. ½x+¹⁄3y-¹⁄5z=1 hp=.....( saya pikir tidak dapat diselesaikan karena hanya ada 1 persamaan dan 3 peubah ) mestinya ada 3 persamaan dengan 3 peubah , nuwun

4.  √11+√7



     √11-√7

, samakan penyebutnya dengan dikalikan penyebut yaitu       √11-√7

nanti akan didapat bentuk sederhana ((28 + 2V77) /4 = 


Pelajaran Matematika Kelas 10
05-12-2011 Reinaldo
10-12-2011 Drs. Jumadi

ASSALAMUALAIKUM,, BAPAK IBUK MINTA TOLONG BUATIN CONTOH TEXT ANALITYCAL DAN CONTOH SOALNYA ESSAY 5 BUAH,, MAKASIIH,, TPI TLONG CEPAT YAA,, LAGI BUTUH SEKARANG SOALNYA.. wassalam

The importance of Reading

I personally think that reading is a very important activity in our life.  Why do I say so?  Firstly, by reading we can get a lot of knowledge about many things in the world such as Science, technology. Sports, arts, culture, etc written in either books, magazine, newspaper, etc.

Secondly, by reading we can get a lot of news and information about something happening in any parts of the world which can we see directly.

Another reason, reading can give us pleasure too.  When we are tired, we read books, newspaper or magazine on the entertainment coloumn such as comedy, short story, quiz, etc. To make us relaxed.

The last, reading can also take us to other parts of the world.  By reading a book about Irian Jaya we may feel we’re  really sitting in the jungles not at home in our rooms.

From the facts above, it’s obvious that everyone needs to read to get knowledge, information and also entertainment.  Or in summary we can say reading is truly important in our life.

1.      Why is reading very important in our life?  Because…..

a)      By reading, we can get a lot of friends, relatives, experience, etc.

b)      By reading, we can get little knowledge but a lot of entertainment.

c)      By reading, we are always relaxed.

d)      By reading, we are always happy.

e)      By reading we can get a lot of knowledge, news, information and entertainment

2.      If we want to get knowledge, what should we do?

a)      buy a lot of books

b)      borrow a lot of books

c)      look for newspaper and magazine

d)      sell and buy many expensive books

e)      Read a lot of books and other printed materials.

3.      What does the text tell us about?

a)      The description of reading

b)      The function of reading

c)      The importance of reading

d)      The disadvantages of reading

e)      The purpose of reading

4.      What is the social function of the text?

a)      To tell a story

b)      To describe the reader

c)      To entertain the reader

d)      To give information

e)      To persuade the reader

5.      Paragraph…. In the text is the thesis.

A.        1

B.        2

C.       3

D.        4

E.        5

 


Pelajaran Bahasa Inggris Kelas 11
04-12-2011 DITA
10-12-2011 Wirastuti S.Pd M.Acc

BOLEH MINTA TOLONG BUATIN CONTOH TEXT ANALITYCAL BESERTA CONTOH SOALNYA ESSAY 5 BUAH,, KALO BISA SEKARANG... MAKASIH

The importance of Reading

I personally think that reading is a very important activity in our life.  Why do I say so?  Firstly, by reading we can get a lot of knowledge about many things in the world such as Science, technology. Sports, arts, culture, etc written in either books, magazine, newspaper, etc.

Secondly, by reading we can get a lot of news and information about something happening in any parts of the world which can we see directly.

Another reason, reading can give us pleasure too.  When we are tired, we read books, newspaper or magazine on the entertainment coloumn such as comedy, short story, quiz, etc. To make us relaxed.

The last, reading can also take us to other parts of the world.  By reading a book about Irian Jaya we may feel we’re  really sitting in the jungles not at home in our rooms.

From the facts above, it’s obvious that everyone needs to read to get knowledge, information and also entertainment.  Or in summary we can say reading is truly important in our life.

 

1.      Why is reading very important in our life?  Because…..

a)      By reading, we can get a lot of friends, relatives, experience, etc.

b)      By reading, we can get little knowledge but a lot of entertainment.

c)      By reading, we are always relaxed.

d)      By reading, we are always happy.

e)      By reading we can get a lot of knowledge, news, information and entertainment

2.      If we want to get knowledge, what should we do?

a)      buy a lot of books

b)      borrow a lot of books

c)      look for newspaper and magazine

d)      sell and buy many expensive books

e)      Read a lot of books and other printed materials.

 

3.      What does the text tell us about?

a)      The description of reading

b)      The function of reading

c)      The importance of reading

d)      The disadvantages of reading

e)      The purpose of reading

4.      What is the social function of the text?

a)      To tell a story

b)      To describe the reader

c)      To entertain the reader

d)      To give information

e)      To persuade the reader

5.      Paragraph…. In the text is the thesis.

A.        1

B.        2

C.       3

D.        4

E.        5

 


Pelajaran Bahasa Inggris Kelas 11
04-12-2011 DITA
10-12-2011 Wirastuti S.Pd M.Acc