Answer:
[tex]2.99\cdot 10^{11}C[/tex]
Explanation:
The mass of one electron is
[tex]m_e = 9.11\cdot 10^{-31}kg[/tex]
So the number of electrons contained in M=1.7 kg of mass is
[tex]N=\frac{M}{m_e}=\frac{1.7 kg}{9.11\cdot 10^{-31}kg}=1.87\cdot 10^{30}[/tex]
The charge of one electron is
[tex]e=1.60\cdot 10^{-19} C[/tex]
So, the total charge of these electrons is equal to the charge of one electron times the number of electrons:
[tex]Q=Ne=(1.87\cdot 10^{30})(1.6\cdot 10^{-19}C)=2.99\cdot 10^{11}C[/tex]
