Вопрос школьника по предмету Физика
Почему пуля пробивает в пустом тонкостенном стеклянном стакане лишь два маленьких отверстия, в то время как стакан, наполненный водой, разбивается при попадании в него пули вдребезги?
Ответ учителя по предмету Физика
Т.к. давление в воде везде одинаковое. Значит, в момент соприкосновения пули с водой сила пули идет с водой к стенкам стакана и соответственно вода при резком толчке пулей разрывает стакан.
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А. Температура воздуха с высотой повышается.
Б. Температура воздуха с высотой понижается.
1. Верно только А.
2. Верно только Б.
3. Оба верны.
4. Оба неверны.
ДАМ 100 БАЛЛОВ