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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
47,834 
Consider a wire, if I suddenly pass current on it. There would be an instant localized B field around the wire. Since...

Apr408 07:58 PM
enroger

4 
957 
In school yesterday I was doing a practical and when I moved a small 1.5T block magnet near a rheostat the magnet...

Apr408 05:21 PM
lugita15

1 
1,261 
Im studying for the Fundamentals of Engineering exam (coming up April 12!!) and came across this Thermodynamics...

Apr408 01:04 PM
Mapes

1 
1,094 
I wanna know if in rapid adiabatic compression of a gas, is work done by gas on surrounding (atmosphere) numerically...

Apr308 11:07 PM
zarbanx

14 
3,006 
Hi all,
One idle night a friend and I started an argument over the question:
"How much energy is imparted on to...

Apr308 06:06 PM
seycyrus

12 
9,237 
I know that as temperature increases the extension of a material under a specific load increases too, but what is the...

Apr308 12:00 PM
Andy Resnick

1 
1,197 
Hoping that someone on this forum can help me with this problem that has been stealing my sleep at night:rolleyes:
...

Apr308 11:13 AM
jacob_yukon

0 
635 
Do electrons flowing in a circuit perform work with their mass (or kinetic energy)? For example like a water flowing...

Apr208 10:44 PM
Snazzy

32 
6,883 
If you have the primary and secondary coils of a transformer next to each other, then current will induce a voltage in...

Apr208 03:13 PM
TVP45

3 
1,003 
if a system of particles is composed of n freely moving particles .is the mass of this system qual to the sum of the...

Apr208 01:41 PM
tarekkkkk

2 
893 
If you combine many small magnets together in a cube or spherical shape (say those 1.5 tesla rare earth magnets), is...

Apr208 10:03 AM
clem

4 
1,233 
I am a beginner in thermodynamics. I was going through a educational board's chapter on thermodynamics. I want to...

Apr208 08:05 AM
Andy Resnick

2 
1,078 
So, I am looking a question about adiabatic expansions and the associated entropy changed.
Why exactly is the...

Apr208 07:46 AM
Mapes

4 
1,055 
I was just wondering, since my textbook doesn't really explain it too well, what velocity is part of the equation F =...

Apr208 02:16 AM
Feldoh

13 
2,082 
When dealing with system containing millions of particles( for example, charged particles or magnetic particles) with...

Apr108 07:36 PM
pam

1 
1,030 
Hi there,
I'm working on some experiments regarding to gases. I want to know what'd happen to gas which is uneder...

Apr108 04:16 PM
russ_watters

9 
2,807 
The flux rule states that the emf induced in any loop is given by the rate of change of magnetic flux through that...

Apr108 03:00 PM
lugita15

4 
2,138 
Hi!
Can some one give me a link where i can find details about finding the velocity of propagation of a mechanical...

Apr108 12:17 PM
Andy Resnick

1 
2,356 
magnetic field forms closed loop always. So, it should be called a nonconservative force.
But if a charged...

Apr108 11:41 AM
i_island0

12 
3,039 
A revolving satellite is similar to a lift which is falling from a height. Only the difference is that the satellite...

Apr108 11:23 AM
YellowTaxi

6 
1,524 
Hi,
If I were to bring a magnet (just 1 mm long) close to a hypothetical "magnetic" black hole  something that has...

Mar3108 03:41 PM
rsr_life

0 
1,838 
This question came some time back in Stony Brooks exam. I have the solution also. But i am having some conceptual...

Mar3108 03:02 PM
zarbanx

2 
10,341 
Hi,
When a gas is compressed, its temperature increases. But what is the formula to calculate this rise? Could you...

Mar3108 02:38 PM
zarbanx

3 
17,050 
Hi there,
I am developing a really cool new product and it somehow relates to pressure's behavior. Since I do not...

Mar3108 12:26 PM
marcusl

1 
1,004 
Hi, I am wondering if anyone here has a way to calculate the surface temperature of an object as it gets hit by a...

Mar3108 10:57 AM
fair001

9 
3,629 
Hi,
I'm looking at finding a way to determine when a stream of water of a certian diameter coming from a hole at a...

Mar3108 08:17 AM
Andy Resnick

2 
1,848 
When I do some physics derivation, I find that on a seesaw, if the object is farther away from the fulcrum, the...

Mar3108 05:10 AM
Doc Al

5 
3,401 
As part of my project I want to calculate the theoretical value of the best thickness of cladding to use on my...

Mar3008 07:45 PM
Claude Bile

15 
1,870 
if F is any function and H is the hamiltonian, then the Poisson Bracket of F and H, is given by:
= dF/dt ...

Mar3008 04:34 PM
George Jones

2 
892 
Hi, I'm looking for some help in calculating the amount of force from natural gas exploding. Part of the problem is...

Mar3008 04:26 PM
Lojzek

1 
778 
Now suppose we have two conductors A and B. A has a charge of +2 and B has a charge of +8. If we let the two...

Mar3008 01:56 PM
DaleSpam

5 
1,184 
I am having a problem with some thermodynamics calculations. I am not very experienced with them and it certainly...

Mar3008 12:49 PM
lilrex

0 
932 
Hello
I attach a question (PDFfile) which I found in an old physics book, I printed the question and regenerated...

Mar3008 10:48 AM
Lory73

4 
1,023 
Question on Magnetic polarization
Is it possible to hear/record the sound created by the shifting of the alignment...

Mar3008 10:15 AM
Lojzek

1 
986 
Many of us have seen how to find a vector satisfying the following conditions (i) magnitude is m (ii) makes angles...

Mar3008 07:26 AM
mr.survive

13 
8,174 
Well, I think this one is pretty simple, but still, I don't know how to solve it.
We all know that for uniform...

Mar3008 06:58 AM
mr.survive

3 
935 
It's widely known that the electromagnetic wave equation admits of timeadvanced as well as timeretarded solutions,...

Mar2908 09:32 PM
DaveLush

0 
543 
I am writing an essay in which I try to describe Centripetal Force to a layperson. Since I am a layperson myself, I...

Mar2908 07:32 PM
Hootenanny

11 
2,561 
If F denotes the central force and is given as the inverse of the square distance
F=k/r^2. where k>0. How can i show...

Mar2808 09:24 PM
Shooting Star

1 
951 
My professor brought this up in class the other day, but has yet to elaborate on it and i can't stop thinking about...

Mar2808 01:28 AM
harshant

6 
2,824 