In a typical bi-elliptic orbital transfer trajectory, all three maneuvers are achieved by prograde burns. (Hint --> Definition: A prograde burn increases the spaceship's orbital speed in the same direction.) True False
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- We would like to be able to make meaningful interpretations of variations in the acceleration due to gravity, g, as small as 0.1 mgal. How accurate must our knowledge of the latitude of our gravity stations be? (A “gravity station" is just a location at which you make a gravity measurement.) You can assume your latitude is 45°.A satellite is in a circular orbit at an altitude of 1.5 earth radii, with an inclination of 90°. Calculate the satellite's orbital period in minutes. Report your answer to three significant digits (e.g. 123). For the radius of the earth use RE = 6371 km; for the gravitation acceleration use g = 9.81 m/s2. What is the orbital period in minutes?Let’s imagine that you have an idea for an experiment to fly on NASA’s “Vomit Comet.” (What’s special about this plane? It flies in parabolic paths (aka freefall) which result in near weightlessness. This means that you can ignore the effects of gravity when plan your experiment.) You want to mimic the orbital motion of the planets but by using electrostatic force rather than gravitational. And, instead of a planet, you will be orbiting a droplet of water that is 0.5mm in radius and has an deficit of 1.5 x 106 electrons. The droplet is to orbit around a small (1cm radius) sphere. If you want the droplet to move with an orbital radius of 14cm and period of one minute, what should the charge be on the central sphere? BTW The density of water is 997 kg/m3.
- NEE HELP PLS1 Suppose two spacecraft which plan to rendezvous are in circular coplanar orbits separated by 100°. The radius of the interceptor spacecraft’s orbit is 6750 km and the radius of the target spacecraft’s orbit is 6900 km. How long must the interceptor wait before starting the rendezvous?What is the minimum speed (km/s), relative to the Sun, necessary for a spacecraft to escape the solar system if it starts at the Earth's orbit? Voyager 1 achieved a maximum speed of 125,000 km/h on its way to photograph Jupiter. Beyond what distance (m) from the Sun is this speed sufficient to escape the solar system?