Physics, 28.04.2021 20:00 jjjxxcsenone1034

К. р. 1) При строгании рубанком преодолевается сила сопротивления 80 Н. Какая работа совершается для снятия стружки длиной 2,6 м? 2) Какую работу совершает насос за один час, если он каждую минуту выбрасывает 1200 л воды на высоту 24 м?3) Воробей массой 100 г летит на высоте 2 м со скоростью 18 км/ч. Определите полную механич. энергию.4) Как изменится кинетическая энергия тела, если его скорость уменьшится в 3 раза? 5) Массу груза увеличили в 5 раз, а высоту его подъема уменьшили в 3 раза. Как изменилась потенциальная энергия груза? мне нужно срочно с дано и решением пожалуйста ✍✍

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К. р. 1) При строгании рубанком преодолевается сила сопротивления 80 Н. Какая работа совершается для...

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