Final answer:
This question is about measuring wind speed using a voltage system and is related to the physics of wind turbines.
Step-by-step explanation:
In this question, we are discussing the measurement of wind speed using a system that provides voltage values proportional to the wind speed every 2 seconds. This falls under the subject of Physics as it involves the understanding of velocity, which is a fundamental concept in physics. Furthermore, the question mentions wind turbines, which are devices that convert wind energy into electrical energy, and this is a topic within the field of physics.