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.

i think they are all correct

explanation:

they seem good

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19