Who discovered the relationship between a planet's orbital period and its distance from the Sun?
Galileo Galilei
b Nicolaus Copernicus
C Johannes Kepler
d Isaac Newton

Ineed to know why d is the correct answer asap

Drag each label to the correct location in the equation. not all tiles will be used. the density of mercury is 13.6 grams per cubic centimeter. complete the steps for converting 13.6 g/cm3 to kg/m3. (1 kg = 1,000 g, 1 m3 = 106 cm3)

What causes eclipses? check all that apply. earth's rotation on its axis moon's shadow covering the sun earth's shadow covering the moon earth's orbit and moon's orbit occasionally aligning the moon and sun's gravity pulling in the same direction