An earth satellite is observed at perigee to be 250 km above the earth's surface and traveling at about 8500m/s. Find the eccentricity of its orbit and its height above the earth at apogee. Earth radius is 6.4 105 m, G-M/R

(a) What linear speed must an Earth satellite have to be in a circular orbit at an altitude of 182 km? m/s (b) What is the period of revolution? min

Example 4. A satellite is orbiting a circular orbit at an altitude of 900 km, at which atmosphere density is 5.46 x 10-13kg/m³. The satellite has mass 150kg, cross sectional area 1.50m², and drag coefficient 2. a) Calculate the rate of change of orbit radius da/dt in units of m/s. b) Make an estimate of the time (in years) that will take the satellite to reach the Earth.

In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.40×1016 kg and a radius of 8.20 km What is the speed of a satellite orbiting 4.90 km above the surface? What is the escape speed from the asteroid?

A geosynchronous Earth satellite is one that has an orbital period of precisely 1 day. Such orbits are useful for communication and weather observation because the satellite remains above the same point on Earth (provided it orbits in the equatorial plane in the same direction as Earth’s rotation). Calculate the radius of such an orbit based on the data for Earth in Appendix D.

Current Attempt in Progress One model for a certain planet has a core of radius R and mass M surrounded by an outer shell of inner radius R, outer radius 2R, and mass 4M. If M-2.97 x 1024 kg and R-8.31 x 10 m, what is the gravitational acceleration of a particle at points (a) R and (b) 3R from the center of the planet? (a) Number (b) Number Units Units

Palapa satellites orbit the earth 24-hour period. If the palapa satellite orbits planet x which has the same mass as the mass of the earth. And the radius is 4 times the radius when it orbits the earth. Then the satellite orbits planet x by?

In 2000 , NASA placed a satellite in orbit around an asteroid. consider a spherical asteroid with a mass of 1.50 * 10^16 kg and a radius of 10.0 km what is the speed of a satellitie orbiting 5.90 km above  the surface ? express with appropriate units what is the escape speed from the asteroid (express with appropriate units)

A 561-kg satellite is in a circular orbit about Earth at a height above Earth equal to Earth's mean radius. (a) Find the satellite's orbital speed.  ?m/s (b) Find the period of its revolution.  ?h (c) Find the gravitational force acting on it. ? N

(a) What linear speed must an Earth satellite have to be in a circular orbit at an altitude of 160 km above Earth's surface?  (b) What is the period of revolution?  Take the mass of earth as 5.98×1024 kg and the radius as 6.37×106 m