What is the formula of satellite?
The orbital speed can be found using v = SQRT(G*M/R). The R value (radius of orbit) is the earth’s radius plus the height above the earth – in this case, 6.77 x 106 m. Substituting and solving yields a speed of 7676 m/s.
What is the principle of launching a satellite?
The fundamental principle to be understood concerning satellites is that a satellite is a projectile. That is to say, a satellite is an object upon which the only force is gravity. Once launched into orbit, the only force governing the motion of a satellite is the force of gravity.
What is Earth’s orbital period?
365 days
What are the 3 Milankovitch cycles?
The three elements of Milankovitch cycles are eccentricity, obliquity, and precession (Figure 3). Eccentricity describes the degree of variation of the Earth’s orbit around the Sun from circular to more elliptical.
Is the earth wobbling?
It is commonly believed that the Earth is perfectly spherical in shape. But in reality, it is an oblate spheroid, with varied geographies contributing to the uneven distribution of mass on the surface of the Earth. Due to this uneven distribution, Earth wobble as it spins on its axis.
What does wobbling mean?
1a : to move or proceed with an irregular rocking or staggering motion or unsteadily and clumsily from side to side. b : tremble, quaver. 2 : waver, vacillate. transitive verb.
Is the Earth static?
Earth is a Dynamic Planet Change is perhaps the only constant in our planet’s history. Since the Earth’s beginning about 4.5 billion years ago, natural climate and environmental conditions on our planet have been in constant flux.
What are the 10 facts about the Earth?
- Plate Tectonics Keep the Planet Comfortable:
- Earth is Almost a Sphere:
- Earth is Mostly Iron, Oxygen and Silicon:
- 70% of the Earth’s Surface is Covered in Water:
- The Earth’s Atmosphere Extends to a Distance of 10,000 km:
- The Earth’s Molten Iron Core Creates a Magnetic Field:
What is a Earth shape?
The Earth is an irregularly shaped ellipsoid. This NASA image shows Earth from space. While the Earth appears to be round when viewed from the vantage point of space, it is actually closer to an ellipsoid. However, even an ellipsoid does not adequately describe the Earth’s unique and ever-changing shape.
What is the color of earth?
Explanation: Here are the true colors of planet Earth. Blue oceans dominate our world, while areas of green forest, brown mountains, tan desert, and white ice are also prominent. Oceans appear blue not only because water itself is blue but also because seawater frequently scatters light from a blue sky.
What Colour is Pluto?
Pluto’s visual apparent magnitude averages 15.1, brightening to 13.65 at perihelion. In other words, the planet has a range of colors, including pale sections of off-white and light blue, to streaks of yellow and subtle orange, to large patches of deep red.
Is Earth a Colour?
Earth tone is a color scheme with multiple meanings. In its narrowest sense, it refers to “any color containing some brown” – the color of ground or soil (earth). It can also refer to “natural colors” (colors found in nature) such as brown soil, green leaf, cloudy sky, as well as the red sun.
What is the oldest color?
bright pink
What is the new color?
The color is named after its chemical makeup: Yttrium, Indium, and Manganese. YInMn is a vibrant shade of blue. Oregon State’s press release notes that the new pigment is formed by a unique crystal structure that only reflects blue. Additionally, its compounds are so stable that the color does not fade.
What was the first color of the universe?
In January, the true colour of the Universe was declared as somewhere between pale turquoise and aquamarine, by Ivan Baldry and Karl Glazebrook at Johns Hopkins University in Baltimore Maryland. They determined the cosmic colour by combining light from over 200,000 galaxies within two billion light years of Earth.
How old is the color red?
Take a journey with us through history to discover the surprising story of the world’s most powerful color… Scientists have found evidence that over 40,000 years ago, Stone Age hunters and gatherers ground up red clay to make body paint.
Why is Red more visible?
Red light has the longest wavelength and, therefore, the least amount of energy in the visible spectrum. Wavelength decreases and energy increases as you move from red to violet light across the spectrum in the following order: red, orange, yellow, green, blue, and violet.
What color is most attractive to the human eye?
Hazel eyes have also been voted as one of the most attractive eye colours and can, therefore, be argued to have the best of both worlds, health and beauty. Green eyes are incredibly rare, which may be the reason as to why some believe this to be the most attractive eye colour.
What colors do humans see best?
In the middle of the spectrum resides the color green, at around 555 nanometers. This wavelength is where our perception is at its best. Because of its position in the center of the spectrum, both blue and red light waves are enhanced and better perceived with the help of green waves.
Why red is red?
Colour of objects The colours we see are the wavelengths that are reflected or transmitted. For example, a red shirt looks red because the dye molecules in the fabric have absorbed the wavelengths of light from the violet/blue end of the spectrum. Red light is the only light that is reflected from the shirt.