My Scientific Questions and Researches + Need help

  • Thread starter Thread starter Ewrim
  • Start date Start date
  • Tags Tags
    Scientific
AI Thread Summary
Evrim is conducting research on scientific topics and seeks assistance with specific questions about Pluto's formation, the sun's effects on living beings, and the state of stone during its cooling process. Forum members emphasize the importance of showing personal effort in answering these questions before receiving help. They encourage Evrim to investigate and formulate his own thoughts on the subjects. The community aims to promote independent learning rather than simply providing answers. Engaging with the material is essential for developing critical thinking skills.
Ewrim
Messages
3
Reaction score
1
Dear people, I'm working on these times with investigations of some scientific subjects. Dear people, I need help from you, I want to learn more and more studies, really it will be good if you help me.

If you don't mind dear people, can I ask these questions first?

- How was the dwarf planet Pluto formed? Had the cold water role during the forming?
- Are the effects and lights of from the sun, important for the living beings? If it so, when was it discovered, that it's important?
- Was there a time when the stone was in a liquid state and then it gradually cooled down and solidified?And was the stone in the beginning quite brittle and would break into pieces like a piece of glass? If so, when was it discovered?

With kind regards,

if I am annoying please tell me that I've annoyed you

With kind regards, Evrim
 
Physics news on Phys.org
You can ask all the questions you want, but the policy at PF is you have to show some work at providing your own answers.
 
Ewrim said:
How was the dwarf planet Pluto formed? Had the cold water role during the forming?
Google knows some link that will give you the answer.

Ewrim said:
Are the effects and lights of from the sun, important for the living beings?
Guess what? Google knows it too!

Ewrim said:
If it so, when was it discovered, that it's important?
I don't think this question has a definite answer.

Ewrim said:
Was there a time when the stone was in a liquid state and then it gradually cooled down and solidified? And was the stone in the beginning quite brittle and would break into pieces like a piece of glass? If so, when was it discovered?
First question many kids can answer, second one is interesting, third one is what it is.

To quote you once more:
Ewrim said:
I'm working on these times with investigations
So stop asking and investigate. Ask when you have found something that you cannot understand.
 
mafagafo said:
First question many kids can answer, second one is interesting, third one is what it is.

To quote you once more: So stop asking and investigate. Ask when you have found something that you cannot understand.

Hmm ok :) Why do not tell if you know? Maybe I need to learn more than one child. If you do not know, then you let yourself fool.

I expect an answer, if you know so much: Was there a time when the stone was in a liquid state and then it gradually cooled down and solidified? And was the stone in the beginning quite brittle and would break into pieces like a piece of glass? If so, when was it discovered?

With kind regards,

Evrim
 
Ewrim said:
Hmm ok :) Why do not tell if you know? Maybe I need to learn more than one child. If you do not know, then you let yourself fool.

I expect an answer, if you know so much: Was there a time when the stone was in a liquid state and then it gradually cooled down and solidified? And was the stone in the beginning quite brittle and would break into pieces like a piece of glass? If so, when was it discovered?

With kind regards,

Evrim

It is against the PF Rules (see Site Info at the top of the page) for us to give you answers to schoolwork questions. We can offer hints, ask you questions, find your errors in your answers, and so on. But you must show your efforts at answering your schoolwork questions before we can be of tutorial help.

We have these rules here because we want to help you learn how to learn. If we just "spoon feed" you the answers, you will not learn how to think on your own.

Now, can you please tell us your thoughts for each of the questions you have asked?
 
  • Like
Likes 1 person
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top