Предмет: Физика, автор: differchanel

Определить мощность танка,который,равномерно двигаясь со скоростью 18 км/ч,преодолевает силу сопротивления движению 73,6 кН.

Ответы

Автор ответа: MashaPutnaj

Дано V=18 км/ч=5 м/с F=73.6*10^3 Н N- ?

N=F*V=73,6*5*10^3=368 кВт

Ответ N=368 кВт

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Breakfast was cooked by our mother.

The new rule was explained to us at the English lesson.

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They will be trained by a famous coach.

I will be sent to the competition.

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Упражнение 2. Выберите правильный вариант и переведите на русский язык.

The news programme ( is watched / watched ) by millions of people every day.

The Mona Liza ( painted / was painted ) by Leonardo da Vinchi.

The new cinema ( be built / will be built ) next year.

New pop groups ( are much spoken / is much spoken ) about among teenagers.

Alexander Pushkin’s first poem ( was written / written ) when he was fourteen.

The letters (be sent / will be sent ) by post tomorrow.

The translation (was finished / were finished ) two hours ago.

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The dinner ( be / will be ) ready in an hour (через час).

The dogs (were taken out/ was taken out) three times yesterday.

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This text (to translate) at the last lesson.

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