30. Below you are given data about a wave in three different substances 1: Based on the knowledge of the relationship between wavelength and frequency, do the numbers in the data table represent the relationship between frequency and wavelength?
2: Explain your answer above mathematically in terms of a frequency and wavelength equation.
{HINT: make sure the only variables are frequency and wavelength

Which statements identify what astronomers currently know and think will happen with our universe? check all that apply. the big bang produced dark energy, which accounts for some of the energy needed to expand the universe. the vastness of space may contain a type of matter known as "dark matter." the universe is currently shrinking at a rapid rate. the universe is currently expanding at an accelerating rate. the big bang theory explains all the energy and matter discovered by scientists.