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Парта,парк,Яша,речь,шляпа,щука,синичка,юла,кот,класс,вдруг,
веревочка,текст,одуванчик,день,стол,оля подчеркнуть твердые согласные.-
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Автор:
shyanne - 6 лет назад
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Прт,прк,ш,р,шп,к,к,л,кт,клсс,вдрг,вк,кст,двнк,стл.
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Автор:
gunnar - 6 лет назад
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Нужен перевод
Solar-powered Cars
One of the ways we can reduce the amount of pollution from traffic seems to power our
vehicles using renewable resources. The cars are reported to use photovoltaic (PV) cells to convert
sunlight into electricity. A single PV cell is known to produce only a small amount of electrical
power. To increase the power, lots of PV cells are connected together to make a 'solar panel'.
Panels can be linked to form a large solar array that is certain to produce enough electricity to
power a car.
When engineers design their electrical systems they have to take into account variations in the
intensity of sunlight. The Sun's energy is supposed to power the car's motor and also charge a
battery for use at night or at times when the Sun is hidden by a cloud. If a car is designed to put all
its energy toward driving and keeps nothing in reserve, it is sure to stop completely in cloudy
weather. If too much energy is diverted to the battery, the engine is found to run too slowly.
Engineers still have many questions and problems to tackle before solar power becomes an
efficient and economical way to fuel vehicles. Today's solar-powered cars are rather expensive but
as the pressure on fossil-fuel resources is certain to increase scientists will continue to search for
alternative energy sources, including harnessing the Sun's energy to drive vehicles. The most
fascinating part of using solar power as an energy source is that it is considered to be pollution-
free and inexhaustible. If research continues, stopping for petrol is likely to become a thing of the
past.-
Предмет:
Английский язык -
Автор:
brown sugarcy0x - 6 лет назад
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Напишите глагол to stand в 9 временах
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Английский язык -
Автор:
hercules - 6 лет назад
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Выберите один ответ:
1. земную кору от ядра
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5. астеносферу от ядра -
краткое сочинение на тему Зимний вечер
помогите пожалуйста, очень срочно !!!-
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