[Astronomy] Rank these from smallest to largest.

Helix Nebula, Mercury, Sun, Earth, Betelgeuse Star, Cat’s Eye Nebula, Io Moon, Jupiter, the Moon, Milky Way Galaxy, Metis Moon, Pinwheel Galaxy, Polaris (North Star), Ring Nebula, Sombero Galaxy.

Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt