Ad-free experience
Study Guides for 1,000+ titles
Full Text content for 250+ titles
No Fear Translations of Shakespeare’s plays (along with audio!) and other classic works
Flashcards
Mastery Quizzes
Infographics
Graphic Novels
AP® Practice & Lessons
Note-taking
Bookmarking
Dashboard
-
Escape velocity
The escape velocity is the minimum surface speed required to completely escape the gravitational field of a planet. It does not depend on the direction of launch. It is given by:
v = 
-
Viscous Drag
Viscous drag occurs when a satellite interacts with air molecules in the upper atmosphere. The friction generated with the atmosphere speeds up the satellite but spirals it into a lower orbit.
Terms
Formulae
| Relation between r and θ: |
|
= 
(1 + εcosθ)| Minimum radius: |
|
| Maximum radius: |
|
Did you know you can highlight text to take a note?
x
