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If you are seeking help with a...

Apr2211 05:27 AM
ZapperZ

2 
63,518 
The aim of this thread is to highlight recent (as in within the past 3 months) noteworthy physics papers that have...

Apr814 10:13 AM
ZapperZ

166 
159,909 
Hello everyone,
I am working on producing a torque rod (basically a solenoid) for use in a spacecraft that I am...

Jul1408 12:02 PM
Kydharis

0 
4,786 
The following attached file is a free body diagram for a bicycle. Please excuse the crudity of the drawing, I drew it...

Dec3108 12:23 AM
gearhead

0 
1,951 
Does anyone know how to convert 2000 ft lbs of torque into linear weight? I have an electric brake capable of holding...

Dec812 12:12 AM
K^2

2 
739 
Please let me know if the formula that i had genreated to calculate angular acceleration is correct.
Problem...

Oct2510 08:22 PM
pines344

0 
2,406 
I have a question having to do with the affect of torque on a vehicle. I have 2 situations to make it easier to...

Oct2309 07:56 AM
xxChrisxx

3 
1,732 
This problem should be an introductory physics problem, but I am not sure if I am going about it the right way. This...

Apr2013 04:15 PM
amainejr

3 
451 
Imagine, I drop a stick with uniform mass horizontally towards the ground. There is only one force acting on it, which...

Oct512 03:20 PM
0xDEADBEEF

2 
1,021 
This isn't a homework question.
I'm really confused at this, say you're holding a massless ruler / stick and there...

Feb2110 08:36 PM
The_Journey

3 
1,754 
Let's say we have a 2d ship made up of two engines and a body attached by rigid bars:
EME
If the engine on the...

Sep2604 08:21 PM
Alkatran

0 
875 
Hello. The question reads, "...This is the world's heaviest hinged door. The door has a mass of 44,000kg, a rotational...

Feb2808 02:55 PM
JFlash

0 
2,310 
Hi, I was thinking about doing an experiment on the torsion balance, but hundreds of people already experimented on...

Oct1010 09:21 PM
kakashi1027

0 
675 
i just need to know what is the name of the ruler that measures the wire when we want to change the length wire??...

Dec111 01:55 PM
queenstudy

0 
706 
Is anyone familiar with a rope skein like on a torsion catapult? Essentially there are two points between which a...

Jan308 09:26 PM
Adam Braley

0 
4,939 
Could someone please point me in the right direction for finding formulas dealing with torsion springs and also...

Jan1805 08:50 PM
Gokul43201

1 
2,571 
i just want like 3 to 4 lines about the history of torsional pendulum like who started with it and what is it used...

Dec111 06:51 AM
121910marj

3 
1,386 
I can't find any info on the net on this can anyone help.
I've found plenty of theory on singular torsional pendula...

Jul1209 10:45 PM
Kristopa

0 
544 
has any one ever noticed that if u hold a chain at one end and spin it round real fast u get a kind of oval shpere...

Jul2203 01:32 PM
arcnets

3 
3,933 
Hi, does anyone know how to calculate the total absorptin of a sample from its labdamabsorbance spectrum?
I found a...

Oct1912 10:00 AM
mfb

1 
645 
Is the total electric charge of the universe zero? Positive? Negative?
Is the charge conjugation symmetry broken in...

May2204 08:08 PM
Antonio Lao

2 
1,695 
Do you think the total electric charge of Our Universe is zero?

Apr105 06:50 AM
SpaceTiger

5 
1,781 
I wanted to know the average total energies of an isolated hydrogen atom's electron and proton separately. I came...

Dec2010 02:06 PM
dirtyd33

2 
1,106 
Does anyone know how to calculate the total energy of magnet?
Thanks!

Nov1009 05:46 AM
Shantaram

4 
3,236 
I was presented with a very simple physics problem today which unfortunately stumped me for some reason:
you have...

Apr1508 12:24 PM
Mephisto

4 
1,202 
I'll ask this in the form of an example. A bus is traveling at some speed and there is no wind. The bus experiences a...

Sep2709 07:12 PM
rcgldr

0 
617 
The KE (kinetic energy) of an electron revolving around a nucleus is always positive, and the PE (potential energy) of...

Oct1512 08:26 AM
AudioFlux

2 
1,102 
Its stated that total energy of an isolated system is given by
E = \frac{1}{2}mv^{2} + \frac{1}{2}Iω^{2} + mgh.
...

Jul712 10:24 AM
alterecho

4 
731 
Suppose we've got two still particles of any mass we would like, infinitely far apart.
The total energy here is of...

Jun513 10:23 PM
s0ft

6 
748 
Applying the 2nd law of thermodynamics to the whole universe is tricky, since if the whole universe would always...

Mar112 07:26 AM
mc^2

16 
5,419 
I have a question that has been bugging me lately. How is it that you determine the total error of a measurement?
...

Sep908 01:32 PM
Topher925

8 
11,183 
I am trying to figure out force of each vehicle if both travelling at 13.4112m/s one weighing 65kg and the other 75kg...

Nov2608 04:48 PM
fireblade101

3 
571 
Is the total impulse of a rocket, divided by its weight, the Isp of the rocket?

Jul810 09:05 AM
7gear

0 
732 
Does anyone know how to get the total impulse of a model rocket? I know that there are various equations to use, but...

Jul410 04:16 PM
7gear

0 
1,347 
Why does total internal reflection happen in glass?

Mar1009 03:44 PM
Bob S

4 
1,734 
How is that in refraction of light energy is lost but not in case of total internal reflection?
Is the loss in total...

Feb1811 06:28 PM
sophiecentaur

6 
2,573 
Does total internal reflection occur if the refraction of light is passing from air into water?
Thanks

Jul3011 02:49 PM
tinytim

1 
853 
If there is total internal reflection, does the angle of incidence always equal the angle of reflection?
Thanks

Jul3011 05:12 PM
fromthepast

2 
663 
Why is it that T.I.R. only occurs when a light is traveling from a denser to a rarer medium? Intuition suggests that...

Apr908 02:18 PM
billiards

4 
2,295 
I did an experiment on the speed of light with different length of optical fibers.
I know that the fiber has a...

Apr209 11:09 AM
ATH500

6 
3,910 
Imagine a square prism made from some material with such an index of refraction and surrounded by a substance of such...

Jan2414 06:22 AM
Claude Bile

4 
256 
Question about Total Internal Reflection?
My textbook says that for total internal reflection to occur 2 conditions...

Jan611 03:37 PM
Doc Al

3 
4,221 