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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
46,911 
hi, I'm simulating a system of molecules (water) and in order to pass through a barrier they have to overcome an...

Mar3112 02:08 AM
K^2

2 
1,147 
Hi!
I'm having some trouble with optics.
When we have convex, planoconvex, concave, planoconcave, and meniscus...

Mar3012 11:09 PM
chitturp

2 
1,971 
There's a circuit with voltage source V resistance R and current i.
One section of the circuit has a conductive...

Mar3012 08:09 PM
papernuke

4 
851 
Does anyone know a good website or other source for practicing conversions and really just units in general? I'm...

Mar3012 07:56 PM
K^2

2 
1,005 
I'm trying to calculate the maximum volume of Helium gas that can be ionized into plasma if I apply a power of 1 watt,...

Mar3012 07:53 PM
CognitiveNet

0 
1,199 
An object floats if it is less dense than water. I'm assuming that an aircraft carrier can float because there are...

Mar3012 05:22 PM
Drakkith

3 
1,513 
If a permanent magnet is moved in a direction at right angles to the magnet field lines in the magnet, is an emf...

Mar3012 04:40 PM
MS La Moreaux

8 
1,019 
If we place an infinite conducting sheet in free space, and fix its potential to \varphi_0, how do we solve solve for...

Mar3012 03:40 PM
chrisbaird

1 
946 
Hi, I'm new to the forums, and I have a question.
Here's the scenario:
Let's say I have a circuit in a vacuum...

Mar3012 03:29 PM
chrisbaird

1 
875 
So Polarization of light has always really bugged me. Linear polarization is simple. I understand Elliptical and...

Mar3012 03:03 PM
chrisbaird

2 
1,496 
what does more damage an object w/ a high acceleration or a greater momentum
i was watching one of my favorite tv...

Mar3012 02:04 PM
mrneuro

4 
804 
Q1if i apply a force on an object that object moves with acceleration does it mean object becomes like a force f=ma ?...

Mar3012 01:22 PM
mr newtein

2 
601 
Hello. I want to help a friend solve a problem. I'm having trouble finding the right way to solve for distance for...

Mar3012 01:00 PM
chrisbaird

1 
855 
Hi,
I have a problem which I can't figure out.:confused:
Let us take a sphere which is rolling purely at a...

Mar3012 10:56 AM
nerdvana101

3 
780 
Why isn't the influence of air pressure assimilated in Archimedes law?
If an obect is more dense than the fluid, it...

Mar3012 06:06 AM
HWGXX7

8 
1,911 
Hello experts!
Higher the emf of the battery implies that the higher the drift speed of the electrons or increase...

Mar3012 04:46 AM
shayaan_musta

8 
1,269 
HI,
I am having some trouble understanding the effects of an impulse on rolling motion, particularly without...

Mar3012 01:30 AM
nerdvana101

5 
1,042 
How can I calculate how much heat a resistance wire gives off when I energize it? For example, I have calculated the...

Mar2912 08:59 PM
privitmj

4 
1,717 
Im trying to calculate how hot the gas inside my exhaust pipe is. I have several numbers and a calculation on how to...

Mar2912 05:37 PM
Tweaked9107

0 
635 
For an infinite current sheet whose current has always been on, it is well known that a purely magnetic field exists...

Mar2912 04:00 PM
chickpea

11 
2,391 
Whats more basic  newtons third law or conservation of momentum
You can prove newtons third law by conservation of...

Mar2912 02:46 PM
DaleSpam

4 
1,235 
First, to make sure i have this right, lagrangian mechanics, when describing a dynamic system, is the time derivative...

Mar2912 01:13 PM
Supfresh

2 
664 
Could someone provide me with a link or source which i can cite for the values of the hall coefficients of tungsten...

Mar2912 08:42 AM
Liquidxlax

2 
1,853 
Can anyone tell me the definition of a "Nyquist" with respect to units of frequency? I didn't find it defined on the...

Mar2912 08:34 AM
AlephZero

3 
889 
I just took a physics test today and there was one problem that I cannot figure out if I did correctly. The problem...

Mar2912 05:16 AM
K^2

5 
1,701 
So I have been thinking about what it would mean to have a high temperature. This means the the change in entropy per...

Mar2912 03:34 AM
paddysmith

14 
1,798 
When riding a motorbike, at relatively high speeds the handle becomes harder to turn. Is this due to the conservation...

Mar2812 10:57 PM
jim hardy

18 
2,295 
Why is it harder to hammer in a nail the deeper it gets?
Classical physics says
F k or s = μ k or s N
the...

Mar2812 01:30 PM
Philip Wood

4 
1,017 
I'm not sure that I understand the equipartition theorem intuitively. In general the thermal energy for a body is:
...

Mar2812 08:54 AM
Khashishi

3 
1,060 
Currently we are designing a thermal storage unit to be used in conjunction with a heat pump system. See attachment...

Mar2812 05:46 AM
mzc07

0 
1,935 
I just realized that given a hamiltonian H, the set generated by its canonical transformations under composition just...

Mar2812 05:13 AM
espen180

0 
645 
I have a discussion about shielding of noise generated by appliance and florescent lights. I know both Al and Cu are...

Mar2712 10:57 PM
marcusl

7 
4,540 
Dear Forum,
let's consider a certain load. The load has its own internal structure (resistors, capacitors, etc...)....

Mar2712 10:25 PM
fisico30

4 
1,451 
If two masses, m and 2m, are separated by a distance r, what is the potential energy of mass m? What is the potential...

Mar2712 07:15 PM
K^2

8 
1,288 
A billiard ball is cued by striking it horizontally at a distance d=10mm above the center of the ball. The ball has...

Mar2712 05:47 PM
berkeman

2 
957 
Suppose we have an electron orbiting a nucleus,in an anticlockwise direction, in a magnetic field, with field lines...

Mar2712 02:29 PM
Bob S

10 
2,144 
What occurs if a higher velocity, denser plasma plowed through a less dense plasma traveling at a lower, but parallel...

Mar2712 01:43 PM
chrisbaird

7 
1,664 
Can somebody explain how night vision and/or a black light work? I know it does something where it enhances dark...

Mar2712 01:20 PM
Drakkith

2 
1,213 
Why do gyrascopes or things moving in a stright line not fall over. Probably a simple answer but i cannot work it out.

Mar2712 12:52 PM
Bob S

6 
1,028 
Is conservation of momentum a fundamental thing? For example : conservation of energy is basic, its fundamental, it...

Mar2712 11:09 AM
Khashishi

1 
849 