Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with rocket-science
Search options not deleted
user 262628
Colloquially referred to as one of the hardest professions, rocket science is actually a common name for spacecraft/space-systems engineering. However, one can also generalize this to include all forms of rocketry, including rockets that are not capable of space travel.
0
votes
2
answers
504
views
Derivation of Tsiolkovsky rocket equation
My textbook derives the rocket equation from conservation of momentum like so:
$$\begin{align}p_i&=p_f \tag{1}\\
mv&={(m-dm_g)}{(v+dv)}+dm_g(v-u)\\
mv&=mv+m\,dv-dm_g\,v-dm_g\,dv+dm_g\,v-dm_g\,u\\
m\, …
- 213k
0
votes
Derivation of Tsiolkovsky rocket equation
I believe the textbook's instruction to disregard the $dm_g\,dv $ term is in error.
If we leave it in, and let $m_0$ denote the initial mass and $dm = -dm_g$ the change in mass, (1) reduces to
$$\ …
- 245