Recent content by Paavo Palikka

Hi again! my question might be quite unreadable, apologies for that. Unfortunately I can't find any good picture from internet, but maybe picture below is suffisient enough. One should turn it 90 degrees so that ground is down and springs are vertical. g is acting on mass then vertically...

Hello! I have rather simple problem, but I can't find somehow answer for it: There are two springs in series, let's say spring 1 and spring 2. Springs are attached and spring 2 is attached to ground. In the beginning springs are not stretched. Let's say springs have spring constants k1 and k2...

Bystander: Not really, but thanks for trying to help.

Thank you for your answer Nidum! Even heat 1-->5000bar does does not get device warm, I would be interested how this could be calculated theoretically. I forgot to say that this is rather theoretical question, .Paavo palikka

Hello! I have some troubles finding a way to estimate how much temperature of liquid would rise when it is suddenly adiabatically pressurized to thousands of bars. In normal conditions liduids such as water are considered to be incompressible, but certainly not in 5000 bars. Because water (or...

Chestermiller: Well at least in my mind effective bulk modulus refers to kind of stiffness of object. As seen in bulk modulus equation: This answers question "how much volume changes when certain pressure is applied". I think whole object does not need to be pressurized. As an example in...

Cherestermiller: Thanks for your answer! However I have to disagree, one of the first hits by googling effective bulk modulus is http://www.atp.ruhr-uni-bochum.de/rt1/currentcourse/node89.html. It is quite easy to find other articles like this also by googling. However I have problems...

Thanks for your answers! I forgot to tell that this is rather theoretical question. 500 bar pressure piston creates as well as bulk modulus of fluid and, piston and cylinder can be anything. They are not important, I am just curious about the way effective (total) bulk modulus would be...

Hello, I have been thinking about following problem: I have some kind of piston and cylinder with oil. I know the pressure in oil. Let's say it is 500bar. I would want to know how much is displacement of piston. Let's say bulk modulus of oil is 3Gpa. Let's also say that bulk modulus of...

Hello guys, I was watching video about physical basis for arrow of time.. ..as well as several other videos and articles about physics of time. I am puzzled with this picture here (seen in 35:07 in video above)...