Apply Your Knowledge 
4.10 An extension of Textbook Example 4.2 

The goal of this model is to predict the behavior of one variable, C_{A2}. Why do we need two equations? 
4.11 An extension of Textbook Example 4.9 

4.12 A further extension of Textbook Example 4.9 

4.13 An extension of Textbook Example 4.12 


Two transfer functions were combined into one overall transfer function, what property facilitated this combination? 
4.14 An extension of Textbook Example 4.14 
Frequency Response 
If the sine had a larger period p (and a smaller frequency, since w = 2p/p) by a factor of 2, what would the new value for the tank volume be? ( w = frequency and p = 3.14159...) 
4.15 An extension of Textbook Example 4.15 
Frequency Response 
What features of the model G(s) = K/(ts+1) were important when we used the "short cut" method for calculating the frequency response (by setting s = jw)? 
4.16 A further extension of Textbook Example 4.15 
Frequency Response 