Answer:
u = 9,95x10⁻²⁷ kg
Explanation:
The reduced mass is defined as the effective inertial mass appearing in the two-body problem of Newtonian mechanics.
The formula is:
[tex]u = \frac{m_{1}m_{2}}{m_{1} + m_{2}}[/tex]
As the mass of the carbons is 1,99x10⁻²⁶ kg:
[tex]u = \frac{1,99x10^{-26}kg1,99x10^{-26}kg}{1,99x10^{-26}kg + 1,99x10^{-26}kg}[/tex]
u = 9,95x10⁻²⁷ kg
I hope it helps!