The Law of Conservation of Energy
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6 سال پیش
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It sounds like a legal
It sounds like a legal requirement to save energy, but the law of conservation of energy is actually all about physics. Learn what it means. (Presented by AlliantEnergyKids.com)
6 سال پیش
در تاریخ 1397/11/04 منتشر شده
است.
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