earth

posted by .

If the Earth has so much mass, then how does it "float"? (My 8th grade Astronomy class trying to figure this out.

-Lauren

• earth -

Try some of the following links:

http://search.yahoo.com/search?fr=mcafee&p=how+does+the+Earth+float+in+space

Sra

• earth -

The earth doesn't "float", it orbits the sun following Newton's Law of Universal Gravitation. The presence of the sun, which is much more massive than earth and the other planets, drives the movement of the planets. The sun is so dense that a spoonful of it is approximately as massive as the Rocky Mountains! The attractive force between the planets and the sun known as gravitational force is what determines the orbit of the planets. The orbiting motion is continuous and can be described by Kepler's Laws.

• earth -

According to the condensation theory, the most important factor for the formation of our planets was __

Similar Questions

1. Physics

I still cannot solve this problem: Consider a spaceship located on the Earth-Moon center line (i.e. a line that intersects the centers of both bodies) such that, at that point, the tugs on the spaceship from each celestial body exactly …
2. Astronomy

Need some help with Astronomy. I need to figure out the acceleration of gravity on the surface of certain planets. For example, I need to find the acceleration of gravity on Mars when the mass is .11 times the mass of Earth and the …
3. Astronomy

Compared with the strength of Earth's gravity at its surface, how much weaker is gravity at a distance of 13 Earth radii from Earth's center?
4. college, Astronomy

Compared with the strength of Earth's gravity at its surface, how much weaker is gravity at a distance of 13 Earth radii from Earth's center?
5. Astronomy

Suppose that you travel to a planet that has 4 times the Earth's mass and 4 times the Earth's radius. Calculate how much more or less you would weigh on this planet compared to your weight on Earth. Express your answer as a factor …
6. astronomy

6. Suppose that you travel to a planet that has 4 times the Earthâ€™s mass and 4 times the Earthâ€™s radius. Calculate how much more or less you would weigh on this planet compared to your weight on Earth. Express your answer as a …
7. physics

Which of the following best describes the strength of the gravitational force on Earth due to your mass?
8. Astronomy

Suppose the Moon is at a (center-to-center) distance D from Earth. Find an exact expression for the magnitude of the tidal force applied by Earth to our rock of mass m in terms of D, m, the mass of Earth Me (input as M_e), and the …
9. astronomy

On Earth, an astronaut weighs about 600 Newtons. The mass of the Earth is about 6 x 1024 kg, and the radius of the Earth is about 6.4 x 106 m. Suppose the astronaut climbs a ladder to a height of one Earth radius above the Earth. What …
10. physics

This figure shows the force on a 0.1-kilogram mass at various distances from Earth. Notice that the force decreases as the square of the distance. Now, consider satellites A and B, both circling Earth. If A has ten times the mass of …

More Similar Questions