How are theories supported in the scientific community?

they are treated as hypotheses.

they are tested by many scientists.

they are unproven but accepted as fact.

they are rarely altered after publication.

Asimply means that over time there was some sort of change.

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?