Проектор полностью освещает экран A высотой80 см, расположенный на расстоянии250 см от проектора. На каком наименьшем расстоянии (в сантиметрах) от проектора нужно расположить экран B высотой160 см, чтобы он был полностью освещён, если настройки проектора остаются неизменными?

СРОЧНО!!!!   В узкую мензурку вода налита до уровня 10 см, определить давление воды на дно мензурки, если её отклонили на угол 30 градусов от вертикали. Плотность воды 1000 кг/м^3

нужно найти ошибки в тексте Sports is an important part of cultural tradition in Great Britain. Two especially well liked national sports are tennis and football. For football fans, nothing can compare with the excitement produced every four-years by the World Championship, an event which is watched world-wide. This event is not only a possibility to watch top class football, it is also an opportunity to see some of the most well known players in the world, celebrities in their own right. For tennis fans, Wimbledon, which takes place every June, is the event to pay attention .This championship tennis competition is not only a sporting event – it is a culture event. It is not uncommon for tennis fans to take a small holiday so that they can watch the matches undisturbed. While some tennis lovers watch the games in the comfort of their living-rooms, others are happy to brave the unpredictable June weather to watch the games played live. There is some discussion about whether the enormous wages paid to professional sportsmen are extremely high, but for many fans, the big pleasure received from watching a true professional in action is worth any price.

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