Satellites in Orbit: Explore the Outer Space

In summary, the conversation discusses boosting a satellite from one orbit to another and the necessary increase in speed to match the energy of the new elliptical orbit. The formula v= (sq. root) GM/(Re+h) is used to calculate the required velocity, which is found to be 7730m/s.
  • #1
pureouchies4717
99
0
i solved it. thanks to all who responded
 
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  • #2
shouldnt the answer be the same as the one in part a?
 
  • #3
Apply the energy conservation.
 
  • #4
No, its speed needs to be increased at point 1 so that it matches the speed if it were in the elliptical orbit. This will then transfer it into the new elliptical orbit, or stated differently its energy need to be increased (kinetic) so that it matches the energy of the elliptical orbit at that point (the potential energy is the same at that point for both orbits).
 
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  • #5
nick727kcin said:
a.)Consider a 1000 kg communication satellite that needs to be boosted from an orbit 300 km above the Earth to a geosynchronous orbit 35,900 km above the earth. Find the velocity v_1 on the lower circular orbit.

this came out to be: 7730m/s
Can you show how you got that answer?
 
  • #6
thanks for responding guys, and i got that answer by using this formula:

v= (sq. root) GM/(Re+h)

part a is definitely right, though
 
  • #7
nick727kcin said:
thanks for responding guys, and i got that answer by using this formula:

v= (sq. root) GM/(Re+h)

part a is definitely right, though

That looks good to me.
 

1. What is a satellite?

A satellite is a man-made object that orbits around a planet or other celestial body. Satellites can be used for various purposes, such as communication, navigation, and scientific research.

2. How do satellites stay in orbit?

Satellites stay in orbit due to the balance between their forward motion and the gravitational pull of the object they are orbiting. This is known as the centripetal force, which keeps the satellite in a constant state of free-fall around the object.

3. How many satellites are currently in orbit?

As of 2021, there are over 6,000 satellites in orbit around the Earth. However, this number is constantly changing as new satellites are launched and old ones are decommissioned.

4. What is the purpose of exploring outer space with satellites?

The main purpose of exploring outer space with satellites is to gather information and data about the universe and our own planet. Satellites can help us better understand weather patterns, monitor natural disasters, and study other planets and galaxies.

5. How are satellites launched into orbit?

Satellites are typically launched into orbit using rockets or space shuttles. The satellite is placed on top of the rocket or shuttle and is propelled into space with a combination of powerful engines and booster rockets. Once it reaches its intended orbit, the satellite is released and begins its mission.

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