24. Find the energy and power of the continuous time x(t) and discrete time x[n] signals defined below. (a) x(t) e2u(1) (b) x[n] = 3"u[n] %3D 25. A voltage signal vs(t) from a soil moisture sensor is applied to the terminals of an active lowpass RC filter system. The filter system produced output voltage signal vo(t), which is used for irrigation control in the farm. Sketch the filter system implementation diagram and derive an expression for the output vo(t). If the input voltage signal to the system is 15 mV and the output required from the system is 5 V at a frequency of 50 Hz, find the system components that should be implemented to achieve the desired output. What is the gain of the output voltage is dB. What practical values of the system components will you use for the system implementation if different from your calculated values? What will be the impact of your practical values on the output voltage?