Discover Questions

Is the Photon not a particle not a volume with mass not an entity, isn't only a mathematical construct and not a real substance? Which statements must be true?
Select each correct answer.
UV=UK
JK=2VW UV¯¯¯¯¯∥JL¯¯¯¯¯
UW=VW
UW=12KL Is this right? Will give best answer? Ductwork cleaning 48328? If I count to 10 how many numbers did I count..!? What is 1 and 1/3 minus 2/3?