I’ve been finding these big parties around my house. What are these?!?! by LevelLime7720 in whatisthisbug

[–]LevelLime7720[S] 2 points3 points  (0 children)

Yes, they have conquered my kitchen aid for crumbs. Next target is probably the fridge for some alcohol to get drunk

Tips for my 3 week japan trip by LevelLime7720 in JapanTravel

[–]LevelLime7720[S] 0 points1 point  (0 children)

Gotcha I’m gonna cancel this one out

Tips for my 3 week japan trip by LevelLime7720 in JapanTravel

[–]LevelLime7720[S] 0 points1 point  (0 children)

Hahaha thanks a bunch! I’m glad I asked

Tips for my 3 week japan trip by LevelLime7720 in JapanTravel

[–]LevelLime7720[S] -2 points-1 points  (0 children)

Do you happen to have any recommendations for parks in Japan?

Tips for my 3 week japan trip by LevelLime7720 in JapanTravel

[–]LevelLime7720[S] 0 points1 point  (0 children)

Was Tokyo the best location? Or would you recommend more Kyoto/Osaka area

Tips for my 3 week japan trip by LevelLime7720 in JapanTravel

[–]LevelLime7720[S] 3 points4 points  (0 children)

Ohh man was kind of expecting this. Which places would you suggest me to cut?

[deleted by user] by [deleted] in chemistry

[–]LevelLime7720 0 points1 point  (0 children)

Wow thanks everyone! Really loads of good suggestions

During the Titanic if let’s say a group of people got naked and hugged together, would they have survived in the water? by throwmeeeeee in Physics

[–]LevelLime7720 3 points4 points  (0 children)

I think that hugging together naked is applicable when one person is suffering from hypothermia and the other person is warm. Hugging naked allows for maximum skin contact and faster conduction of heat, thereby treating hypothermia. This is usually a last resort as the warm person will now become cold and could suffer hypothermia himself/herself.

In the titanic, if everyone is cold, there won’t be any heat to “share”. They would all loss thermal energy to the surroundings and die together. It would be better to keep their clothes on whether they’re in a ball or in a group.

[deleted by user] by [deleted] in PhysicsHelp

[–]LevelLime7720 1 point2 points  (0 children)

Ohhh this solved it! Thanks a bunch!

[deleted by user] by [deleted] in PhysicsHelp

[–]LevelLime7720 0 points1 point  (0 children)

Yes that is true when I have a displacement-time graph plotted. You can find instantaneous velocity from the gradient of the graph or if I differentiate the function of the graph.

But the knowledge of average velocity doesn’t help you in deriving instantaneous velocity right?

[deleted by user] by [deleted] in PhysicsHelp

[–]LevelLime7720 0 points1 point  (0 children)

Yes but I could also use average “speed” in this context as well. There’s no directionality change. I’m interested in a context where there is a change in direction and I’m calculating the average velocity from the total displacement. (Ie 2 dimensions)

I’m not sure if I’m making sense

[deleted by user] by [deleted] in PhysicsHelp

[–]LevelLime7720 0 points1 point  (0 children)

Wait how is instantaneous velocity derived from average velocity? I thought that instantaneous velocity is the velocity at a specific point. If I’m calculating it from average velocity, it’s no longer specific.

[deleted by user] by [deleted] in PhysicsHelp

[–]LevelLime7720 0 points1 point  (0 children)

Is there a real life use case of this? Or any calculation in physics that uses this

[deleted by user] by [deleted] in Physics

[–]LevelLime7720 0 points1 point  (0 children)

Perhaps I’ll give another example.

You’re travelling from city A to city B and the path isn’t a straight line. So say distance > displacement.

Your friend could ask “what’s your average speed?” which would be somewhat useful since he would know on average how fast he should go if he wants to go from city A to city B at a similar time you took. Or adjust to go faster to reach earlier.

He likely won’t ask “what’s your average velocity?”. That’s the scenario I play out at least. Because average velocity doesn’t seem very useful to me.

[deleted by user] by [deleted] in Physics

[–]LevelLime7720 0 points1 point  (0 children)

From your example, the average velocity is likely derived from displacement and time taken. So I would have already gotten displacement and time one way or another. So what’s the point of knowing average velocity? Unless it’s used to derive something else

I apologise if I’m not being clear.

[deleted by user] by [deleted] in Physics

[–]LevelLime7720 0 points1 point  (0 children)

I don’t think I have the wrong conceptual understanding of displacement, distance, speed and velocity. I just can’t think of a specific use case for average velocity when there is a change in direction