A solar system is a group of planets which orbit a star. Our solar system is comprised of planets like Mercury, Earth, and Jupiter. A solar nebula is a large cloud of gas and dust. An accretion disk occurs when gas and dust spin, typically the main body of this disk is a star.
The diagram shows a wave. the quantity shown is the amplitude. this quantity is directly proportional to which of these other quantities? a) energy b) frequency c) period d) wavelength