Examples of buildup of static energy?

You can download answer here

cutt.ly/nz6VGda

Materials that can lose or gain electrons in this way are called triboelectric, according to Northwestern University. One common example of this would be shuffling your feet across carpet, particularly in low humidity which makes the air less conductive and increases the effect.

Explanation:

Hope that helps :)

0.11 m/s and 0.28 m/s should be correct