# physics

posted by .

Two small spaceships, each with mass m = 2000 kg, are in the circular Earth orbit of the figure, at an altitude h of 420 km. Igor, the commander of one of the ships, arrives at any fixed point in the orbit 90.0 s ahead of Picard, the commander of the other ship. At point P , Picard fires an instantaneous burst in the forward direction, reducing his ship's speed by 1.30%. After this burst, he follows the elliptical orbit shown dashed in the figure. How much earlier than Igor will Picard return to P?
Point p is located at the height above earth at 180 degrees.

• physics -

dhhhh

## Similar Questions

1. ### Physics

I really need you answered this to my email. It's very important, for this may decide my result in the school exams, and I really need a good mark. Unfortunately, Portuguese system of education is full of problems... The question is... …
2. ### physics

A satellite moves in a circular orbit around Earth at a speed of 4390 m/s (a) Determine the satellite's altitude above the surface of Earth.(meters) (b) Determine the period of the satellite's orbit. (hours) I used the equation M(sattelite)V^2/r …
3. ### physics

Two Earth satellites, A and B, each of mass m, are to be launched into circular orbits about Earth's center. Satellite A is to orbit at an altitude of 7460 km. Satellite B is to orbit at an altitude of 20500 km. The radius of Earth …
4. ### physics

Two Earth satellites, A and B, each of mass m, are to be launched into circular orbits about Earth's center. Satellite A is to orbit at an altitude of 7460 km. Satellite B is to orbit at an altitude of 20500 km. The radius of Earth …
5. ### physics

A satellite is in circular orbit above the Earth at an altitude of 2000 km. What is the orbital speed of the satellite?
6. ### physics

A satellite is in circular orbit above the Earth at an altitude of 2000 km. What is the orbital speed of the satellite?
7. ### physics

Suppose the Earth's orbit is divided in two by its minor axis as shown in the figure. How much longer in days does the Earth spend in one half than the other?
8. ### physics

A spacecraft is in circular Earth orbit at 5400km altitude. By how much will its altitude decrease if it moves to a new circular orbit where its orbital speed is 20% higher?