Examples of adding and removing energy in every day life?

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?