When an automotive battery is fully charged, the sulfuric acid and water mixture will have a specific gravity of about 1.3. Specific gravity is actually the difference in the weight of water in comparison to a specific fluid. It is measured by a hydrometer. The amount of charge in the battery is normally measured by the specific gravity of the battery. The specific gravity of water is 1 and anything less than one is considered less dense while anything that has a specific gravity of more than 1 is considered more dense than water.
1.3 ;
The specific gravity of a fully charged automotive battery's sulfuric acid and water mixture is about 1.3. This value reflects the density of the solution compared to water, indicating a higher concentration of sulfuric acid in the electrolyte. As the battery discharges, the specific gravity decreases, which helps monitor the battery's state of charge.
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Jawab:Penjelasan dengan langkah-langkah:Daerah asal (domain) P yang memenuhi adalah {2, 4, 6, 8}. Untuk mencari daerah asal P, kita perlu mencari nilai x yang memenuhi persamaan f(x) = 2x + 4 untuk setiap anggota Q. Dengan kata lain, kita perlu mencari nilai x sehingga 2x + 4 sama dengan setiap anggota dari Q. Jika f(x) = 8, maka 2x + 4 = 8, sehingga 2x = 4 dan x = 2.Jika f(x) = 12, maka 2x + 4 = 12, sehingga 2x = 8 dan x = 4.Jika f(x) = 16, maka 2x + 4 = 16, sehingga 2x = 12 dan x = 6.Jika f(x) = 20, maka 2x + 4 = 20, sehingga 2x = 16 dan x = 8.Jadi, daerah asal P adalah {2, 4, 6, 8}.