[طبيبة اسنان]

thank you very much

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Your age in seconds


for example your age (20), so your age in seconds equal 20 * 365 (days) * 24 (hours)*60 (min.)*60 (sec.)=630720000 s


what about the Leap year i mean loss days in this years



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your mass in slug


what do you mean with slug?

1slug =14.5939 kg


http://en.wikipedia.org/wiki/Slug_(mass)

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I have many questions
Can I lay it down here