The stages below are not in the right order. Number the stages in the correct order. The star begins to run out of fuel and expands into a red giant or red supergiant.
Stars start out as diffused clouds of gas and dust drifting through space. A single one of these clouds is called a nebula
What happens next depends on the mass of the star.
Heat and pressure build in the core of the protostar until nuclear fusion takes place.
The force of gravity pulls a nebula together forming clumps called protostars.
Hydrogen atoms are fused together generating an enormous amount of energy igniting the star causing it to shine.

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k

What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?