Contrast the terms weak and dilute as they describe acids and bases.

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

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.