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Obtain the height of a geostationary satellite, where mass of earth is 6.02×10^24Kg, R=6400Km, T=24hrs?
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Obtain the height of a geostationary satellite, where mass of earth is...
A) A geostationary orbit is when the satellite remains vertically above the same point on the equator at all all times and consequently has an orbital period of 24 hours. b) Use the equation T^2=4(PI)^2(r)^3/GM and rearrange for r. You can then just substitute the values into the equation to find the answer for r. It is important to subtract 6400km at the end because the question asked for the distance from the surface not the centre of the Earth. The final answer is r=3.6x10^7m.
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Obtain the height of a geostationary satellite, where mass of earth is...
Understanding Geostationary Satellites
A geostationary satellite orbits the Earth at a height where its orbital period matches the Earth's rotation period (24 hours). This allows it to remain fixed over a specific point on the Earth’s surface.
Key Parameters
- Mass of Earth (M): 6.02 × 10^24 kg
- Radius of Earth (R): 6400 km (or 6.4 × 10^6 meters)
- Orbital Period (T): 24 hours (or 86400 seconds)
Calculating the Height
To find the height of a geostationary satellite, we use the formula for gravitational force and centripetal force:
- Centripetal Force: F = (m*v^2)/r
- Gravitational Force: F = G * (M*m)/r^2
Equating these forces gives us the orbital radius (r):
- r = (G * M * T^2 / (4 * π^2))^(1/3)
Where G (gravitational constant) is approximately 6.674 × 10^-11 N(m/kg)^2.
Calculating the Orbital Radius
1. Calculate r using the formula above.
2. Subtract Earth's Radius (R) from r to find the height (h).
Final Result
After performing the calculation, the height (h) of a geostationary satellite is approximately 35,786 kilometers above the Earth's surface.
This altitude allows the satellite to maintain a fixed position relative to the Earth's surface, making it ideal for communication and weather observation.
Feel free to reach out for further clarifications or explanations!
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Obtain the height of a geostationary satellite, where mass of earth is 6.02×10^24Kg, R=6400Km, T=24hrs?
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