Ilmu Pengetahuan Alam SMP sekitar 3 tahun yang lalu

Hai kak boleh tanya maksudnya gelombang2 ini Jadi maksudnya ini kalau siang gelombangnya terserap ionosfer Kalau malam gelombangnya emma... Baca Lebih Lanjut

|| 00:45:30 Pada mesosfer dan termosfer terdapat lapisan yang memiliki partikel ion (bermuatan) yang disebut ionosfer. Ketika kamu mendengarkan radio pada malam hari, siaran radio dari kota lain akan terdengar lebih jelas. Hal ini disebabkan karena adanya lapisan ionosfer. Pada siang hari, energi dari matahari mengenai partikel pada ionosfer mengakibatkanpartikel tersebut menyerap gelombang radio dengan frekuensi AM. Pada malam hari, tanpa energi matahari,gelombang radio dipantulkan pada ionosfer, sehingga dapat terpancar dengan jarak yang lebih jauh seperti yang diilustrasikan pada gambar 5.9 berikut Day Night AM radio transmitter Radio waves Receiving antenna lonosphere Boise New Jersey

Bahasa Inggris SMA sekitar 3 tahun yang lalu

tolong dibantu jawab ya kak dikumpul hari ini 🙏

Earthquakes Earthquakes - being among the most deadly natural hazards- strike without any prior warning, leaving catastrophe in their wake with terrible loss of human live as well as economic loss Technically, an earthquke (also known as tremor, quake or temblor) is a kind of vibration through the earth's crust. This vibration occurs as a result of powerful movement of rocks in the earth's crust. This powerful movements trigger a rapid release of energy that create seismic waves that travel through the earth. Farthquakes are usually brief but may repeat over along period of time.(Earth Science 2001) Earthqukes are classified as large and small. Large carthquakes usually begin with sligt tremos but raoidly take form of violent shocks. The vibratio fro a large earthquake last for a few days known as aftershocks. Small earthqukes are usually slight tremors and do not cause much damage Large Earthquakes are known to take down buildings, and cause death and injury(Richter, 1935). According to some statistics, ther may be an average of 500,000 carthquakes every year but only about 100,000 can be felt and about 100 or so can cause damage each year. Earthquakes are dreaded by everyone. 21. These statements are true based on the text above about Earthquakes except a It is dangerous and deadly b. There are two kinds of it c. The cause of human lives and Economic loss d. Strike with prior warning e The small one do not cause much damage 22. This vibration occurs as a result of powerful movement. Paragraph(2) The underlined word has closest meaning to a Repeat 23 b. Happen c continue d. Quit e Explode The social function of the text is. a. To entertain the reader b. To explain how the earthquakes happen d. To give information e. To influence reader. K, To discuss about earthquqkes re-arrange the random sentences into good order. (24 -25 ) 24. 1. It cause the climate changing,the failure of crops,economic slowdown 2. Global Warming increase the temperaure of earth's atmosphere and ocean 3. There is undenied evidence that human activities have been releasing green house gas 4. However, we must keep trying to overcome this problem even for the next generation 25. 1. Bullying is a cruel and unforgiven activities that must be eradicated 2. It's victim will be inferior people, hurt in phisycally, mentality and even worse 3. We must know and realize that it is everyone's problem and responsibility 4. That's why, let's stop bullying with all our efforts for better generation. Have a good time and good lucek

Bahasa Inggris SMA lebih dari 3 tahun yang lalu

tolong nomor 4 dan nomor 5 🙏

09:54 ) O | 40% Text 3 Lightning is a powerful electrical discharge during a thunderstorm. The electric current is hot and causes the air around it expand very quickly, which in turn thunder. Sometimes it happens between clouds. lightning strikes, the surface rubs electrons to the surface. In a from the J, and a spark of electricity shoots from the thunderstorm, the lower have as many as 100 million of electricity in them. Text 4 Electricity is a force caused by an electrical It is a form of energy which use to power machines and electrical devices. electricity. When the charges are moving the charges are not moving, it is static are an electric current, and are sometimes called electricity. Electricity is mostly generated in called power stations. Most power heat to boil water into steam which_ I called a "generator". Generators have wires inside stations_ a steam engine. The steam engine's turbine turns a I spin inside the magnetic field. Electromagnetic induction electricity to flow through the wires Text 5 A mosquito is a type of fly. It is the both male and female mosquitos warm-blooded animals, pierce a capillary, name of a family of flies in the on nectar and plant juices. The females Diptera. Usually on inject saliva to stop the blood coagulating. Then protein from a blood meal before they O suck up and eat the blood. Mosquitos are able to eggs ELIVEWORKSHEET Finish!! PER RIMEN AWA Cara Hemat Renovasi SEMEN Rumah