Determine a mathematical expression for the source. Meaning use the unit step function u(t) in your expression. 3.2: At t =0- (just before the voltage changes), for the polarities indicated, determine the voltage across each component and the current through each component. 3.3: At t=0+ (just after the voltage changes), determine the voltage across each component and the current through each component for the polarities indicated in the circuit.

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?