The sun has a large negative apparent magnitude and a positive absolute magnitude. what does this mean?

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?

Astronomers studying the planet of rhombus have detected sedimentary rock on its surface. one astronomer wonders if material in this sedimentary rock used to be in igneous rock deep in rhombus’s interior. can igneous rock become sedimentary rock? explain your answer.

Blank is the perceived frequency of a sound wave