Which of these questions about skateboarding can be answerd using measurements? (apex) a. why do people enjoy skateboarding? b. how much force is needed to break a skateboard? c. should there be law against skateboarding in parking garages? d. which trick is most popular?

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.