Problem 3 Scale of the Solar System The real diameters of the Sun and Earth are approximately 1.4 million kilometers and 12,800 kilometers, respectively. The Earth-Sun distance is approximately 150 million kilometers. Calculate the sizes of Earth and the Sun, and the distances between them in a scale model that is one 10-billionth the size of the actual solar system. Show your work clearly.

Respuesta :

Explanation:

Let the diameter of the Sun in the model  be = x

Scale used in the model = [tex]\frac{1}{10^{10}}=10^{-10}[/tex]

[tex]\frac{x}{D}=10^{-10}[/tex]

The real diameters of the Sun ,D= 1.4 million kilometers = [tex]1.4\times 10^6 km[/tex]

[tex]x=1.4\times 10^6 km\times 10^{-10}=1.4\times 10^{-4} km=14 cm[/tex]

[tex]1 km = 100,000 cm[/tex]

The diameter of the sun in the model is 14 cm.

The real diameters of the Earth,d = 12,800 km

Let the diameter of the Earth in the model  be = y

Scale used in the model = [tex]\frac{1}{10^{10}}=10^{-10}[/tex]

[tex]\frac{y}{d}=10^{-10}[/tex]

[tex]y=12,800 km\times 10^{-10}=1.28\times 10^{-6} km=0.128 cm[/tex]

The diameter of the Earth in the model is 0.128 cm.

The Earth-Sun distance ,l = [tex]150\times 10^6 km=1.5\times 10^8 km[/tex]

Let the Earth-Sun distance in the model  be = z

[tex]\frac{z}{l}=10^{-10}[/tex]

[tex]z=1.5\times 10^8 km\times 10^{-10}=1.5\times 10^{-2} km=1500 cm[/tex]

The distances between Earth-Sun in the model is 1500 cm.