Q. a) In the diagram which force has a clockwise moment? b) Calculate the the clockwise moment. c) Calculate the anticlockwise moment. d) Is the beam balanced? Explain how can you tell.

The dissociation energy of a molecule is the energy required tobreak apart the molecule into its separate atoms. the dissociationenergy for a particular molecule is 5.48 x 10-18 j.suppose that this energy is provided by a single photon. determinethe (a) wavelength and (b) frequency of the photon

What produces light and all other electromagnetic waves? a) the photoelectric phenomena b) heated metals c) charged particles d) radioactive samples (pls explain if you can : )

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons