Why have we found so many objects in the kuiper belt in the last two decades and not before then?

Which of the following is an example of units for speed

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

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) =_