Iron filings sprinkled near a magnet arrange themselves into a pattern that illustrates the
magnetic poles
magnetic field
magnetic domain
magnetic alignment

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

Lightning is an example of what phenomenon? a release of a large amount of energyan absorption of a large amount of energya natural electric circuita natural electric current

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_