<p>Anyone up for a physics problem? Please?</p>
<p>A planet has a mass of 3.0 x 10^26 kg and a radius of 8.0 x 10^7 m. A satellite it has a mass of 20,000 kg with a highly eccentric orbit of semi-major axis 9.5 x 10^8 m and eccentricity 0.23.</p>
<p>a) What is the satellite’s orbital period?
(Calculate Ag first)</p>
<p>b) What is the speed of the satellite when it is at the closest/farthest points of its orbit?</p>
<p>c) What velocity would the satellite need to escape the planet’s gravity if launched from it’s furthest point.</p>
<p>d) If the satellite fires a projectile to increase its energy by 20%, what will be its orbit’s new semimajor axis?</p>
<p>Thanks in advance.</p>