Answer:
Solution: In this case, the system can be modeled as a function with two output signals,

where

where(x(t), y(t)) is the position of the tail in they plane. This model Is Clearly not linear. If the Input torque doubles, for example, the output values will not double. In fact, the output values are constrained to lie on a circle centered at the origin, regardless of the Input. For this reason, the model is BIBO stable. The output is always bounded. Thus, while our previous model was linear and unstable, this one Is nonlinear and stable. Which model is more useful?
I want to say that it is data authenticity?
Random integer, in this case betweeen 1 and 100
Answer:
chemistry is very important because everything you do is chemistry . our body is made up of chemicals . chemicals reactions occurs when be breathe ,eat , etc . All matter is made of chemicals so that chemistry is very important in our life