Fundamentals Of Physics (6ºed)\chap01

Fundamentals Of Physics (6ºed)\chap01 - . 661 × 10 −...

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19. If M E is the mass of Earth, m is the average mass of an atom in Earth, and N is the number of atoms, then M E = Nm or N = M E /m .W econv e
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Unformatted text preview: . 661 × 10 − 27 kg). Thus, N = M E m = 5 . 98 × 10 24 kg (40 u)(1 . 661 × 10 − 27 kg / u) = 9 . × 10 49 ....
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