The current in a 20 mh inductor is known to be: i = 40 ma for t ≤ 0 i = a1e−10,000t + a2e−40,000t a for t ≥ 0 where t is in seconds. the voltage across the inductor (passive sign convention) is 28 v at t = 0. a) find the correct expression for the voltage across the inductor for t > 0. b) find the time, greater than zero, when the power at the terminals of the inductor is zero.

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse

The slope of a velocity time graph over any interval of time gives the during that interval