Why are only odd harmonics present when one end of the tube is closed and the other end is open.

Which of the following is necessary to build a skyscraper? a. wooden beams b. metal beams c. plastic supports d. all of the above

Does anyone know how to get better at drawing? (any advice is welcome and needed)

Symbolic proportion is a. the relative size relationship between religious figures and other part of a work of art. b. the apparent disproportionate relationship between objects within a piece. c. the manipulation of visual characteristics in order to emphasize one specific figure. d. the use of geometric arrangements to show religious imagery or to tell stories. select the best answer from the choices provided