Which organ in the human body do you think is the most important?

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.

What is the moment of inertia i of this assembly about the axis through which it is pivoted? express the moment of inertia in terms of mr

What ions are formed when hcl dissolves in water?