How does a high-speed rail work/operate?

  • Thread starter Thread starter Ng Sio Hong
  • Start date Start date
Click For Summary
High-speed rail operates through advanced mechanisms that enable rapid movement, often utilizing electric propulsion systems and aerodynamic designs. The discussion highlights the need for thorough research, as the original poster struggled to find useful information for their college assignment. Several informative links were provided, including resources on TGV and Shinkansen technologies. However, the response emphasizes the importance of personal effort in academic work, suggesting that reliance on forums for answers is not appropriate. The thread was ultimately closed due to concerns about academic integrity.
Ng Sio Hong
Messages
4
Reaction score
0
This is for a college assignment that is due in 2 weeks. I have tried searching everywhere for answers but nothing useful comes up. I want to understand how mechanisms inside a high-speed rail are able to cause the train to move. Any answers?
 
Physics news on Phys.org
Ng Sio Hong said:
This is for a college assignment that is due in 2 weeks. I have tried searching everywhere for answers but nothing useful comes up. I want to understand how mechanisms inside a high-speed rail are able to cause the train to move. Any answers?

That is ridiculous. Please do not try to use the PF to cheat on your schoolwork. You need to do the bulk of the work on your schoolwork assignments.

You have been given some links that you should have been able to find on your own. In your future schoolwork posts here at the PF, show your efforts or your threads will be deleted. Thread is closed.
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

Similar threads

  • · Replies 13 ·
Replies
13
Views
2K
  • · Replies 25 ·
Replies
25
Views
2K
Replies
10
Views
3K
Replies
7
Views
582
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 9 ·
Replies
9
Views
8K
  • · Replies 12 ·
Replies
12
Views
1K
Replies
1
Views
5K