Reputation
6,807
Next privilege 10,000 Rep.
Access moderator tools
Badges
1 10 15
Newest
 Good Answer
Impact
~150k people reached

  • 0 posts edited
  • 21 helpful flags
  • 601 votes cast
2d
comment volume of the air bubble in the water
@Mphysics If the bubble is released at a depth $h$ and a volume $V(h)$, this lets you compute $V_0$, the volume at zero depth. What were you looking for?
2d
comment volume of the air bubble in the water
This will let you assess the volume and therefore the buoyancy force, but I don't know how you will get the resistance. That will dominate how fast it rises.
2d
answered volume of the air bubble in the water
Feb
9
answered Heat pump solution to pollution
Feb
9
comment How Much Weight Would This Put On The Legs Of A Desk?
If the bottom table is the one you are worried about, the fact that the load is close to the legs is a good thing. The bending on the surface, often the failure mode of tables, is reduced. If the real problem is buckling or compression failure in the legs nothing will help. It could also be torque at the attachment of the legs to the top. This is also reduced by having your load at the outside edge. When you go (twice) over the rated load you do it at your own risk
Feb
9
answered How Much Weight Would This Put On The Legs Of A Desk?
Feb
8
revised Why is the decay of a neutral pion $\to$ electron-positron loop suppressed?
add info
Feb
8
comment Why is the decay of a neutral pion $\to$ electron-positron loop suppressed?
I have corrected it. I realized the angular momentum problem. It is still true that the EM decays will dominate.
Feb
7
awarded  Good Answer
Feb
7
comment Ohm's law experiment
Depending on how you wind it, you can cancel out the magnetic field it makes, reducing $L$. You did not provide any details of the winding approach, so it is hard to tell.
Feb
7
answered Ohm's law experiment
Feb
7
comment Ohm's law experiment
Please describe the experiment. It sounds like you are connecting a rheostat in series with a voltage source, connecting your sample across that, and measuring the current through the sample as a function of the rheostat resistance. Are you using different lengths of sample? Are you making a measurement very quickly? It would appear so as the induction effect will die away with time.
Feb
7
answered Fundamental forces
Feb
7
answered Bohr radius question
Feb
3
answered Special Relativity problem - proper time interval
Feb
2
answered Why is the decay of a neutral pion $\to$ electron-positron loop suppressed?
Jan
28
answered Would a neutrino bomb do anything? Or can weak force kill you?
Jan
25
reviewed Approve Why couldn't the decay $\pi^- \to e^- + \bar\nu_e$ occur if electrons were massless?
Jan
25
answered What influence has the distance of the moon on the height of the tides?
Jan
24
answered What determines whether a mobile will hang in stable or unstable equilibrium?