Answer Happy

please help me answer this question using the node voltage method. up vote for clear hand writing. you can use a math solver for calculations but please indicate where. thank you for your help
The switch in the Circuit shown below has been closed for a long time before opening a t-o a.) is this RL or RC switching circuit b.) is this Natural or Step Response for tzot C.) Find in (0) d) find in cool e.) Find I for FJ Find iL(t) for tzo G) Find Vilt) for t>ot H. Find i, (t) for tx ot in Fird iz(t) for tzot t=o f iicts in (4 .57 TOA ارها را zor Vict) - 2or