Whats the role of the suns gravity in the solar system

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.

Estimates show that the total energy output of the sun is 5 × 1026 j/s. what is the corresponding loss in kg/s of the sun?

Which two statements are true about a system? a system is a group of objects analyzed as one unit. energy that moves across system boundaries is conserved there's only one way to define the boundaries of a system all systems are made by humans