Sartem Cacartem
  • Member for 3 years, 1 month
  • Last seen more than a week ago
Could the end cap of the Pascal B (1) survive its trip through the atmosphere?
2 votes

The drag equation stands that the an object travelling through the air receives a force of d*v^2*a*q, if the aerodynamic coefficient (q) was 1 and the air density 1.2 then the cap would have received ...

View answer
Why do water tend to rotate when draining?
2 votes

it is because of the conservation of angular momentum. https://www.youtube.com/watch?v=M6PuutIm5h4 The water in the drain is always spinning very slowly, the only way it wouldnt rotate if it is ...

View answer
Why doesn't this capillary action generator work?
2 votes

https://en.wikipedia.org/wiki/Perpetual_motion#Apparent_perpetual_motion_machines This is a fancy capillary bowl and the same force that pushes the water upwards will prevent the droplet at the top ...

View answer
Is it possible to have a liquid plasma?
Accepted answer
2 votes

If you strip electrons from a liquid and then mix them with the cations they will recombine but it is possible to prevent it by heating it to high temperatures, enough to convert the liquid into a gas....

View answer
Do particles splitting decrease temperature?
Accepted answer
1 votes

Yes, if particles are splitted in half, temperature will decrease to a half. But when you dissolve salt in water, each sodium and chlorine molecule will by surrounded by water molecules. https://en....

View answer
What is the sound absorbing characteristic of a material called?
1 votes

The amount of attenuation in viscoelastic materials is called acoustic attenuation coefficient. viscoelastic materials stretch and bounce back like rubber and have viscosity the equation is P(x+Δx)=...

View answer
How do I experimentally measure the resistance from using dielectric grease on battery posts?
Accepted answer
1 votes

For the experiment you can use a cup with water and sodium bicarbonate or baking powder to reduce the resistance of the water, then tune the multimeter to voltage and connect each side to the battery ...

View answer
City songbirds sing in higher pitch?
0 votes

There is no contradiction since human voice's frequency is lower than bird's and is over 85 hz https://erikbern.com/2017/02/01/language-pitch.html that means the wavelength is $\frac{343 m/s}{85 hz}=...

View answer
Capillary tube under atmospheric pressure
0 votes

For a water-filled glass tube in air at standard laboratory conditions, γ = 0.0728 N/m at 20 °C, ρ = 1000 kg/m^3, and g = 9.81 m/s^2. For these values, the height of the water column is. h=(1.48*10^-...

View answer