मराठी

The distance between the Sun and the Earth is 1.496 × 108 km and distance between the Earth and the Moon is 3.84 × 108 m. During solar eclipse the Moon comes in between the Earth and the Sun. - Mathematics

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प्रश्न

The distance between the Sun and the Earth is 1.496 × 108 km and distance between the Earth and the Moon is 3.84 × 108 m. During solar eclipse the Moon comes in between the Earth and the Sun. What is distance between the Moon and the Sun at that particular time?

बेरीज

उत्तर

The distance between the Sun and the Earth is 1.496 × 108 km

= 1.496 × 108 × 103 m

= 1496 × 108 m

The distance between the Earth and the Moon is 3.84 × 108 m.

The distance between the Moon and the Sun at particular time (solar eclipse)

= (1496 × 108 – 3.84 × 108) m

= (1496 – 3.84) × 108 m

= 1492.16 × 108 m

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पाठ 8: Exponents and Powers - Exercise [पृष्ठ २७४]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 8
पाठ 8 Exponents and Powers
Exercise | Q 173. | पृष्ठ २७४

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The table shows the mass of the planets, the sun and the moon in our solar system.

Celestial
Body
Mass (kg) Mass (kg)
Standard
Notation
Sun 1,990,000,000,000,000,000,000,000,000,000 1.99 × 1030
Mercury 330,000,000,000,000,000,000,000  
Venus 4,870,000,000,000,000,000,000,000  
Earth 5,970,000,000,000,000,000,000,000  
Mars 642,000,000,000,000,000,000,000,000,000  
Jupiter 1,900,000,000,000,000,000,000,000,000  
Saturn 568,000,000,000,000,000,000,000,000  
Uranus 86,800,000,000,000,000,000,000,000  
Neptune 102,000,000,000,000,000,000,000,000  
Pluto 12,700,000,000,000,000,000,000  
Moon 73,500,000,000,000,000,000,000  
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  2. Order the planets and the moon by mass, from least to greatest.
  3. Which planet has about the same mass as earth?

The table shows the average distance from each planet in our solar system to the sun.

Planet Distance from Sun
(km)
Distance from Sun
(km) Standard
Notation
Earth 149,600,000 1.496 × 108
Jupiter 778,300,000  
Mars 227,900,000  
Mercury 57,900,000  
Neptune 4,497,000,000  
Pluto 5,900,000,000  
Saturn 1,427,000,000  
Uranus 2,870,000,000  
Venus 108,200,000  
  1. Complete the table by expressing the distance from each planet to the Sun in scientific notation.
  2. Order the planets from closest to the sun to farthest from the sun.

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