I am making a bonded magnet and have the need to maintain a temperature of around 70 C in a magnetic powder compressed in a stainless steel mold for a period of about 2 hours, before cooling rapidly to room temperature. i was thinking about using some sort of infra red heating, but would like to...
Since I first leaned of the concept of social networks it has fascinated me but I never really studied the topic. It seems to me a huge topic but is not widely studied compared to other areas of mathematics. What better way to study such things as the spread of information, political views...
I am currently a law student and intend to eventually practice ‘patent’ law, however law students are not permitted to sit for the patent law bar exam unless they have an academic background in one of the core sciences. There are specific degrees (or classes) which fulfill this prerequisite. A...
Homework Statement
A particle slides along a wire which is rotating at a constant angular velocity w. In polar coordinates the equation of constraint is :
theta' - w = 0 OR theta - wt = 0. *
What is the equation of constraint in cartesian coordinates?
Homework Equations
The...
What degrees do I need to be a warfare physicist. I know I need a Ph.D. in physics. What else do you need? Do need anything in Chemistry? Do I need something in math too? Please give all the details you can think of about my career. :smile:
Homework Statement
"Forces of 10.6 N north, 19.1 N east, and 16.0 N south are simultaneously applied to a 3.62 kg mass as it rests on an air table. What's the direction of acceleration in degrees (Take east to be 0 degrees and counterclockwise to be positive.) "
Using components, I already...
I seek to construct an apparatus capable of moving a steel plate against gravity in 200 milliseconds.
The plate is roughly the same size and shape as the hatch on a submarine:
mass = 40 kg;
dimension: 0.3 meter diameter--> = radius in calculations below;
angle of rotation: 90...
"Rotational degrees of freedom"...I don't get it.
How can you determine how many rotational degrees of freedom an object or system has? For example, how many rotational degrees of freedom does a diatomic molecule have, and why? I've never been good at figuring this out.
I'm looking to see if a flexible beam I am using right now can be flexed further, currently it goes to around 25 degrees and I want to see if I can bend it to around 50 degrees without permanent deformation. Looking to do a back of the envelope calc to check this, what equation should I use, and...
Hello! I am new here, this is basically my first post.
I am an 18 year old from India, just finished high school. It is my wish to pursue a career in physics, going into research and/or academics. However I am somewhat apprehensive about the level of science education one gets in Indian...
Homework Statement
show sin(1), in degrees, is algebraic over the rationals
The Attempt at a Solution
I want to find the minimal polynomial that has root sin(pi/180). Ya that's all I got.
The Einstein field equations (EFE) in 4 dimensions have 10 degrees of freedom; The Riemannian curvature tensor in 4 dimensions has 20. If I understood this correctly, one can split up the curvature tensor and describe the remaining degrees of freedom by its traceless part, which is called the...
After 5 loyal years, my Canon Digital IXUS 400 has given in... i can take pictures, but there are red stripes all over them. Maybe it is something fixable, but I've been meaning to replace the thing anyway.
So, i put it in a plastic sealed bag in the freezer, which the thermometer indicates...
Hi,
Could you pls advise me why in on-shell case graviton has two degrees of freedom?
and in general how do I calculate bosonic or fermionic degrees of freedom of any particle?
I was reading some books about supersummetry and stuck when they said gravitopn has two degrees of freedom and...
I was just wondering how college degrees work. Let's say I got a degree in general physics but also have knowledge of electrical engineering. If I wanted to obtain a degree in electrical engineering on top of a degree in general physics would I have to do the whole 4 year electrical engineering...
I wanted to ask which would provide the largest total BTU cooling regular ice from water or dry ice to reach a temperature of 25 degrees C?
1 lb of Ice would start at -3 degrees C to 25 degrees C at sea level = total BTU
1 lb of Dry ice would start at -80 degrees C to 25 degrees C at sea...
Homework Statement
a) State the law of conservation of linear momentum.
b) A proton of mass 1.6*10-27kg traveling with a velocity of 3*107ms-1 collides with a nucleus of an oxygen atom of mass 2.56*10-26kg (which may be assumed to be at rest initially) and rebounds in a direction at 90 degrees...
Homework Statement
Let f, g be nonzero polynomials with deg (f) \geq deg (g). Show that there
is a unique monomial bx^{k} where deg(f(x) - bx^{k}g(x)) < deg (f).
Homework Equations
see above
The Attempt at a Solution
I define polynomials f and g, with deg(f) = n and deg (g) = m...
Background info
Long version:
So I was just putzing around here on the web and started looking at this forum for kicks and giggles. The problem is it was making me a tad nervous so I figure I'll ask. I was originally going to go into mechanical engineering, then I thought EE. I applied and...
I will be a senior in the fall and expect to graduate in 2010 with degrees in Mathematics and Physics, as well as a minor in German. I know I want to continue my education in grad school, and I eventually want to become a professor (of math or physics, I like them both so much!).
My German...
I just transfer into a Physics Major. I was wondering if anyone has any advice about completing the B.A degree and masters and/or Ph.D. Also, what are the jobs available in each degree for Physics? Thank you.
Homework Statement
shot from 60 degrees 128 cm above ground, a metal ball lands 86.5 cm away.
what is max height the ball reaches?
Homework Equations
d=v1 t + 1/2 a tsquared
v2squared = v1squared + 2ad
d= 1/2(v1 + v2)t
a=(v2-v1) / t
The Attempt at a Solution...
When Vo=68 ; k=.027 ; theta = 39 degrees
(a) The American Football kicker lines up to attempt a field goal . Take the balls initial position to be the origin. For the field goal to be good it must pass between the upstairs, and over the crossbar which are 10 feet above ground level...
Homework Statement
Ax= -4.00 , Ay= -8.00
Please give your answer in the interval (0,360) degrees for theta.
Homework Equations
Theta = ______ degrees
The Attempt at a Solution
I tried inverse of tangent (-8/-4) = 63.4 degrees for theta, but its telling me I am wrong...
or What to do after a BS in Physics.
Education - http://en.wikipedia.org/wiki/Michael_D._Griffin
Dr. Griffin holds seven degrees, and is pursuing his eighth. In chronological order of attainment, Dr. Griffin's degrees include:
Degree Year Academic field...
I am studying physics and I love it. However, I think I am not cut for academia's cutthroat atmosphere, nor am I smart enough for it. I was wondering for other grad degrees that offer a stable job and a stable salary while still doing the stuff I like. I read about medical physics, which seems...
Hello...graduation is still 2 years away however I do enjoy planning ahead with my life 5 years at least. I was looking at the graduate degree levels my school offers (Embry-Riddle Aeronautical University). At first I was intending to do their Accelerated Masters program which would simply be an...
At the last class of our professional seminar, the head of our graduate department came and spoke to us about graduate school admissions and enrollment. It got me interested in the subject, because my industry interests include areas like energy research, robotics and space engineering. I have...
Homework Statement
An organ pipe is 84 cm long and at a temperature of 20 degrees C. What is the fundamental (in Hertz) if the pipe is closed at one end?
Homework Equations
To best honest, I'm not really to sure where to start. Can anyone please help? Start me off?
Thanks in advance!
Part A
Using the equipartition theorem, determine the molar specific heat, C_v, of a gas in which each molecule has s degrees of freedom.
Express your answer in terms of R and s.
Okay, I know that the equipartition theorem is 1/2k_B*T
and molar specific heat is C_v= (1/n)(dU/dT)
But I...
Homework Statement
A triatomic molecule consists of 3 atoms arranged along a straight line. The molecules can
translate and rotate but not vibrate. How many degrees of freedom are associated with this molecule?
Homework Equations
Molar Heat Capacity of Gases:
Cv = f/2(R)
f -...
Is a business degree a stable way to go? Are things like entrepreneurship, financial analysis, MIS, investment banking, etc safe when there is an economic crisis, like now? I'm just wondering because I want to get an MBA one day, probably go to Stanford but if it hinders me from having a stable...
"Degrees of freedom" for lines
I'm reading something about "degrees of freedom" trying to learn what exactly it means, and there's this one sentence I'm running into that I can't really understand...
What is this "the two independent ratios {a : b : c}" ?
They talk a lot about how a line on...
Hi, what exactly is 'data mining'? What kind of degrees in college or jobs require good background in data mining? I've always been interested in areas such as pattern recognition, and was wondering what kind of life as a data miner would be.
Thanks.
as in the diagram below, mass m1 is placed above mass m2 on a sloped incline with an angle of b degrees. the frictional coefficient between the two masses is C1 and the coeficient between mass 2 and the slope is C2.
find the acceleration of the masses...
a stone is thrown at an angle of 36.87 degrees from a height of h=8m and falls to the ground 12m from the point of throwing,
given that the acceleration is defined by
\vec{a}=-\hat{x}-10\hat{y}
find:
a the initial velocity of the throw
b the total time
c the maximum height
d the radius...
Homework Statement
A rocket is launched at an angle of 75 degrees and accelerates at 21.4 m/s^2. Where is the rocket located (from the point of origin) after 11.2 seconds?Homework Equations
a=(vf - vi) / t
(vf + vi) / 2 = (xf - xi) / t
where: vf = velocity final, vi = velocity initial, xf =...
Hello!
I am a bit unclear on degrees of freedom in thermodynamics/stat mech, can someone critique my rational? Here I go:
Essentially, the equipartition theorem states that per each degree of freedom it has an energy of 1/2kT associated with it. So, for a monatomic gas, there are three...
Hi, are there any colleges that offer rigorous programs for both MIS and Artificial Intelligence degrees?
Also, will MIS/Computational Neuroscience/AI require similar core courses to take?
Thanks.
Homework Statement
Hello, I have been doing some trigonometry lately, just trying to get the trig I need for calculus, and the book I am reading goes into inverse trig functions. The book dives into trig equations without giving a very good description of how to find the trig functions. I...
The four sided, a=110.50 ft, b=165.27, c=162.18, and d=a slightly curved line of 146. ft--
(from point to point, it still seems to be 146 feet,) anyway---This from a land survey---I believe the distances of width, center point and (height) can "prove" by the angles. The people I have been...
Homework Statement
A ball is thrown at the angle 30 degrees with an initial speed of 6 m/s, it takes the ball 3 seconds to hit the ground. Calculate the height where the ball was thrown
http://img355.imageshack.us/img355/2407/phyuq7.th.jpg http://g.imageshack.us/thpix.php
Homework...
I don't know if the US has programs like that but we have them here at ANU (Aust)
http://studyat.anu.edu.au/programs/4714HBENG;overview.html"
http://studyat.anu.edu.au/programs/4660HPHB;overview.html"
I'm thinking of transferring to the Science one if I can get in. Do you think it'll...
I'm still doing grade 12 physics, so my physics knowledge is VERY limited.
So I have a question about proving that a projectile launched 45 degrees above horizontal gives the greatest horizontal displacement.
I have to ideas to go about proving this:
1. Subbing Equations
I have...
I've done many other problems like this and understood them all but when it comes to 20 degrees below the x-axis it threw me off. I tried putting the angle to 340 degrees but that was incorrect. I know something has to be negative, i just can't keep guessing at getting it wrong. Hope someone can...