Physics, 13.06.2021 17:10 mehnamejet92
Một hộ gia đình mỗi ngày sử dụng một máy lạnh công suất 1,5kW liên tục trong 8 giờ. Gia đình này phải trả bao nhiêu tiền điện cho việc sử dụng này trong một tháng ? Biết một tháng có 30 ngày và tiền điện cho mỗi kWh điện là 2500 đồng.
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Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?
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Một hộ gia đình mỗi ngày sử dụng một máy lạnh công suất 1,5kW liên tục trong 8 giờ. Gia đình này phả...
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