# How do they do it?

**Electricity and Magnetism**Level 3

Find the **minimum** distance (in **m**) between the two charges.

**Details and Assumptions**

\(\bullet\) \(\displaystyle Q = 5\ \mu C\)

\(\bullet\) \(\displaystyle q = 1\ \mu C\)

\(\bullet\) \(\displaystyle d = 3\text{ cm}\)

\(\bullet\) \(\displaystyle v = 2 \text{ m/sec}\)

\(\bullet\) \(\displaystyle m = 1\text{ g}\)