Предмет: Физика, автор: tanya199898

Помогите пожалуйста с графиком по физике ) Решать научилась как, а вот графики строить нет.

Прошу вашей помощи.

Буду очень благодарна .

Приложения:

Ответы

Автор ответа: tana20101997
0
Как построить график U=282*cos5*pi*t:
Период вы нашли- это 0,4 с
По оси x откладываем время. Выбираем масштаб: 1 кл-0,1 с
По оси y откладываем напряжение. Пусть масштаб 2 кл-282 В
Затем находим точки (x,y), что соответствует(t,u)
Значение координат в клетках: (0,2);(1,0);(2,-2);(3,0);(4,2)
По четырем точкам строим косинусоиду, график которой можно продолжать вправо сколько угодно.
Автор ответа: tanya199898
0
Большое спасибо
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Read the text and fill in the gap with the given words: studied, spoken, borrowed, understand, made, came, spoken, speak, crowd out, exist, brought, came, creating, to put, came into



English is ___1__practically all over the world. It is____2___ as the mother tongue in Great Britain, the United States of America, Canada, Australia and New Zealand. A lot of people __3___English in China, Japan, India, Africa and other countries. It is one of 6 official languages of the United Nations. It is __4___as a foreign language in many schools. England's history helps to___5___the present condition of English. Many English words were __6___from the language of Angles and Saxons. Hundreds of French words _7____ into English. These French words didn't __8___corresponding Anglo-Saxon words. There __9___ "act" and "deed", "beautiful" and "pretty", "form" and "shape". Many new words were __10___by traders and travellers. These words __11___from all parts of the world: "umbrella" —from Italian, "skates" — from Batch, "tea" — from Chinese,"cigar" - from Spanish. Some words __12___English directly from Latin, which was the language of the church and the universities in the Middle Ages. Some of the English words of today are derivatives. One way of _13___new words is ___14__together two or more older English words. For example, the words "railway", "football", "newspaper" are __15___in this way. Many of the new English words — especially new scientific ones — have been made from Latin and Greek words instead of English ones. "Telephone" for instance, was made from Greek words "far" and "talk".