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 energy-conservation
Search options not deleted
user 62456
The law of conservation of energy, which states that the amount of energy in a system is constant. For questions about Earth's environment, see the climate-science tag instead.
2
votes
3
answers
482
views
What's wrong with this idea for recover energy from pressure?
In this case: It's a theoretical study, just for find my error. No gravity. No buoyancy. All volumes are constant. I suppose no friction. Outside, the pressure of air is constant at $P$ (atmospheric p …
- 185
2
votes
0
answers
513
views
Friction and work from torque
I would like to understand where is the error in the third case, for that I gave 2 easier cases where I'm able to find the energy from heating is equal to the energy lost by torque.
Case 1/ Purple di …
- 185
2
votes
0
answers
244
views
Sum of energy from torques of several disks in double rotation [closed]
Here the study:
An external system (not drawn) give energy for rotate disks around themselves and around green axis. All disks have energy at start, at $t=0$ friction is ON and at $t=0$ external syst …
- 185
0
votes
1
answer
352
views
What prevents this rotational perpetuum mobile from working? [closed]
As a newbie in physics I imagine this device and I would like to know why it can't increase its energy.
Note I study the sum of energy during one second (or less) after set friction ON.
The device:
…
- 185