На шелковой нити в воздухе подвешен маленький заряженный шарик массой 90 мг. Если ниже шарика на расстоянии 1 см от него поместить равный,но противоположный по знаку заряд ,то сила натяжения увеличиться в 3 раза. Определить заряд шарика

Основи рівнобічної трапеції дорівнюють 3см і 5см,а діагоналі взаємо перепендикулярні . Визначте висоту трапеції

НУЖЕН ЛИТЕРАТУРНЫЙ ПЕРЕВОД, СРОЧНО!!!!!!!!! We didn’t always live on Mango Street. Before that we lived on Loomis on the third floor, and before that we lived on Keeler. Before Keeler it was Paulina, and before that I can’t remember. But what I remember most is moving a lot. Each time it seemed there’d be one more of us. By the time we got to Mango Street we were six—Mama, Papa, Carlos, Kiki, my sister Nenny and me. The house on Mango Street is ours, and we don’t have to pay rent to anybody, or share the yard with the people downstairs, or be careful not to make too much noise, and there isn’t a landlord banging on the ceiling with a broom. But even so, it’s not the house we’d thought we’d get. We had to leave the flat on Loomis quick. The water pipes broke and the landlord wouldn’t fix them because the house was too old. We had to leave fast. We were using the washroom next door and carrying water over in empty milk gallons. That’s why Mama and Papa looked for a house, and that’s why we moved into the house on Mango Street, far away on the other side of town.

Через 300 г раствора с массовой долей иодида натрия 10% пропустили 3,36 л хлора.Вычислите количество вещества образовавшегося иода.

запишите дано ,что найти и решение .пожалуйста