What task or action could your Rube Goldberg machine perform?

3 ideas!

In a system, when potential energy decreases, then entropy also decreases. true false

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?

Examine the drawing of a molecule. each ring represents an atom of nitrogen (n). what’s the chemical formula of this substance?