I=cv’I know what the voltage at the cap to be 6 voltswith theswitchclosedand the Cap is a…

I=cv'I know what the voltage at the cap to be 6 voltswith theswitchclosedand the Cap is a 1/24fand when theswitch is open there is no voltage at thecap. how would i usethe ti-89 to solve for the time for charge?.
k1+k2ε-t/(rc)would i need to know the r?
ORIs there a way to set up an equation for the node that thecapacitor is at to solve for the equation above. Its easy to writenodal equations when the switch is openand closed but i thoughtthere could be an simpler way to solve for k1+ k2ε-t/(rc) witha modified node equation for the capthanks Jeff

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