Question

De cîte ori este mai mare masa Pămîntului decît masa unui atom de hidrogen?

Answer 1

$m_{H}=1,007 \ 94 \ u.a.m. \\ 1 \ u.a.m.=1,660 \ 540 \ 21 \cdot10^-{27}\ kg \\ \Rightarrow m_H=1,673 \ 724 \ 899 \ 267\ 4 \cdot 10^{-27} \ kg \\ m_P=5,974 \ 2 \cdot10^{24}\ kg \\ \frac{m_P}{m_H}=\frac{5,974 \ 2 \cdot10^{24} \ kg}{1,673 \ 724 \ 899 \ 267\ 4 \cdot 10^{-27} \ kg} \\ \Rightarrow \boxed{\frac{m_P}{m_H}=3.57 \cdot 10^{51} \ ori}$