Recent content by mark_dollar

  1. M

    Sattelite orbiting mars, work done to change distance.

    Thanks Ahmadmz, that's what I got too after I corrected my excel spreadsheet, had the wrong equation in for velocity. ( I do all my homework in excel)
  2. M

    Sattelite orbiting mars, work done to change distance.

    sure am
  3. M

    Sattelite orbiting mars, work done to change distance.

    Homework Statement A 2700 kg spacecraft is in a circular orbit 1000 km above the surface of Mars. How much work must the spacecraft engines perform to move the spacecraft to a circular orbit that is 4000 km above the surface? mars: Mass=6.4185*10^23 KG, radius=3397000 m Homework...