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Fisika SMA

soal no 2

19.54 O „ *49| 62% 4 REMEDIAL Soal ..... Penyelesaian Diketahui : Ditanya : Jawab 3. Tugas dikerjakan serapi dan sejelas mungkin. 1. Benda bermassa 20 kg bergerak dengan kecepatan 4 m/s. Besar gaya yang diperlukan untuk menghentikan benda setelah menempuh jarak 10 m adalah... A. 10 N B. 12 N C. 14 N D. 16 N E. 18 N 2. Benda yang massanya 10 kg diletakkan di atas lantai kasar ( us = 0,4 dan uk = 0,3 ). Jika benda ditariki dengan gaya horizontal sebesar 35 N, g = 9,8 m/s? maka tentukan gaya gesekan. 3. Dua benda yang bersentuhan mula-mula diam di atas lantai licin. Jika pada benda pertama dikerjakan gaya sebesar 200 N, maka tentukan : 200 N 70 kg 30 kg a) percepatan benda b) gaya kontak antara benda 1 dan 2 4. Sebuah mobil sedan dipercepat 6 m/s?. Gaya yang dihasilkan oleh mesinnya adalah 7.800 N. Jika total hambatan angin dan gesekan jalan 600 N, maka massa mobil sedan adalah ... A. 78 kg B. 7700 kg C. 1200 kg D. 1400 kg E. 780.000 kg 5. Sebuah balok kayu 10 kg diletakkan di atas lantai kasar yang memiliki koefisien gesekan >> 0,3 dan 0,2. Tentukan gaya gesekan yang bekerja pada balok jika balok ditarik dengan gaya horizontal 15 N. 6. Balok A = 4 kg dan balok B = 8 kg disambungkan dengan tali yang melalui katrol seperti yang ditunjukkan pada gambar di bawah ini. Sistem mula-mula diam, kemudian dilepaskan. Apabila g 10 m/s? serta gaya gesek dan massa katrol diabaikan, tentukanlah : fisikABC.eom a. Percepatan balok A dan balok B b. Gaya tegangan tali ma me |||

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Bahasa Inggris SMA

tolong bantuin pliss

Setelah memahami struktur teks diatas cobalah mengidentifikasi struktur teks b erikut. Cats Cats also called the domestic cat or house cat (with its scientific name: Felis silvestris catus or Felis catus) is a type of carnivorous mammal of the family Felidae. The word "cat" generally refers to a "cat" that has been tamed, but can also refer to the "big cats" such as lions and tigers. Cats are considered as "perfect carnivore" with teeth and particular digestive tract. The first premolar and molar teeth form a pair of fangs on each side of the mouth that works effectively as a pair of scissors to tear the meat. Page 9 Unit KegiatanBelajar Bhs. Inggris X 3.8 dan 4.8 Although the se features also exist in the Canidae or dog, but these traits are better developed in cats. Unlike other carnivores, cats eat almost non vegetable substance. Bears and dogs sometimes eat berries, roots, or honey as a supplement, while cats only eat meat, usually freshly killed prey. Ih captivity, cats can not adapt to a vegetarian diet because they can not synthesize all the amino acids they need from plant material; it is in contrast with domesticated dogs, which commonly are fed a mixture of meat and vegetables and sometimes it can adapt to a completely vegetarian meal. Cats have mingled with human life since at least 6000 BC, from the skeleton of the cat found on the island of Cyprus. The ancient Egyptians of 3500 BC have used cats to keep away the rats or other rodents from the barn where the crops were saved.Currently, the cat is one of the most popular pet in the world. Cats that his lines are recorded officially as a cat breeds or pure breed are Persian, Siamese, Manx, and the sphinx. These kinds of cat are usually bred in official captivity animal. The number of purebred cat is only 1% of all cats in the world; the est is a cat with mixed ancestry such as wild cats or domestic cats.

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