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do you mean what load this circuit presents to the 2V-3V input?
do you mean the load this circuit can drive?
do you mean the capacitor on the read device is 100 farad?
The 150 ohm resistance is always in the path between the op amps, thus it is the ohmic portion of the load.
As for capacitors, they present zero resistance for a brief time after a change in current flow. The definition of capacitance is that it impedes a change in voltage.
An op amp output has internal resistance. There may be a certain value of resistor at the output however there are also the output transistors. They change their own impedance, so as to create a certain voltage at the output. They need to set a certain current level, either sourcing or sinking current.
The speed at which your capacitors respond depends on the unseen and unknown resistance in your op amps.