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$p={\color{blue}\frac{490,5N}{cm^2}}\cdot \frac{Pa\cdot m^2}{N}\cdot \frac{10^4cm^2}{m^2}\color{blue}=4905000Pa$

und

$p={\color{blue}\frac{490,5N}{cm^2}}=4905000Pa\cdot \frac{bar}{10^5Pa}\color{blue}=49,05bar$

und

$p={\color{blue}\frac{490,5N}{cm^2}}=49,05bar\cdot \frac{1,02at}{bar}\color{blue}=50,031at$

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