Why is the following situation impossible? A spacecraft is launched into a circular orbit around the Earth and circles the Earth once an hour.

Astronomers discover an exoplanet, a planet orbiting a star other than the Sun, that has an orbital period of 1.50 Earth years in a circular orbit around its star, which has a measured mass of 3.80×10^30 kg.Determine the radius ? of the exoplanet's orbit.

Problem 05.090 - Moving a satellite around Earth-DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS A satellite travels around Earth in uniform circular motion at an altitude of 35,799 km above Earth's surface. The satellite is in geosynchronous orbit. In the below figure, the satellite moves counterclockwise (ABCDA). (State directions in terms of the x- and y-axes.) The radius of Earth is 6371 km. B CO Earth D A Problem 05.090.b-1- Magnitude of the satellite's average velocity What is the magnitude of the satellite's average velocity for one quarter of an orbit, starting at A and ending at B?

A satellite is in circular polar orbit around Earth at an altitude of 450 km – meaning it passes directly overhead of the North and South Poles. What is the magnitude and direction of the displacement vector when it is directly over the North Pole to when it is at 40° latitude? Earth’s radius is 6,370 km.

Astronomers discover an exoplanet, a planet orbiting a star other than the Sun, that has an orbital period of 3.87 Earth years in a circular orbit around its star, which has a measured mass of 3.77×10^30 kg. Find the radius r of the exoplanet's orbit.

Scientists have discovered a distant planet with a mass of 8.2x1023 kg. The planet has a small moon that orbits with a period of 6 hours and 36 minutes. Use only this information (and the value of G) to calculate the radius of the moon's orbit (in units of 106 m).

A pilot with a mass of 70.55 kg is flying a small plane in a circular path with a radius of 100.0 m. If a centripetal force of 635N is needed to maintain the pilot’s circular motion, what is the plane and pilot's speed?

Titania completes one (circular) orbit of Uranus in 8.71 days. The distance from Uranus to Titania is 4.36×108m. What is the centripetal acceleration of Titania?

Please answer the highlighted question, number 2

The maximum distance of the earth from the sun is 9.3 x 107 miles. The minimum distance is 9.1 x 107. The sun is at one focus of the elliptical orbit. Find the distance from the sun to the other foci of the ellipse.