Milk is best described as a colloidal solution. This classification arises from its composition and properties:
Therefore, based on these observations and properties, milk is classified as a colloidal solution.
In the system shown below, $x(t)=\sin(t)u(t)$. In steady-state, the response $y(t)$ will be 
The time constant of the network shown in the figure is 
The parallel RLC circuit shown in the figure is in resonance. In this circuit, 