11. Momentum & Impulse

For a uniform, solid baseball resting on Earth's surface, where is its $\mathrm{center of mass}$ located, and where is its $\mathrm{center of gravity}$ located?

Where is the center of mass of the $\mathrm{Earth}–\mathrm{Moon}$ system located relative to the two bodies?

Given a system of two point masses, $m_1$ located at $x_1$ and $m_2$ located at $x_2$, what is the formula for the x-coordinate $x_{\mathrm{cm}}$ of the center of mass of the system?

For a hollow, uniformly dense soccer ball, where is the $\mathrm{center} \mathrm{of} \mathrm{mass}$ located?

Given a system of three particles with masses $m_1$, $m_2$, and $m_3$ located at positions $x_1$, $x_2$, and $x_3$ along the x-axis, which of the following expressions correctly gives the x-coordinate $x_{\mathrm{cm}}$ of the center of mass of the system?