The magnitude of electrostatic between two point charges separated by a distance r is f

Why are graphs useful when interpreting data

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

In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.