# Search results

1. ### Thermodynamic derivation of heat capacity

yes, I know that there are several maxwell relations to get to the solution I just dont know how to apply them.
2. ### Engineering Thinking of a degree in nuclear engineering or health physics

what does health physics entail? I am interested in either nuclear engineering or Health physics but would like to get more detail on what it is that they actually do? Anybody know and wanna help out?
3. ### Thermodynamic derivation of heat capacity

Homework Statement cp=cv+TV?^2/? Homework Equations cp=T/N(\partialS/\partialT)p The Attempt at a Solution I have the equation, just not sure how to apply it? Any help would be appreciated
4. ### Probability of a Particle in a box location

ok so if the particle is supposed to be in between 0 and L/4 then i'm gonna get 4/L because it is 1/4 of the total length of the box...
5. ### Probability of a Particle in a box location

so how/where would i begin normalizing that??
6. ### Probability of a Particle in a box location

Homework Statement A particle of mass m is located in a box of length L and found to be in its ground state A) what is the probability of finding the particle between x=0 and x=L/4 B) What is the expectation value for the position of the particle? C)What is the expectation value <x^2>...
7. ### Superposition of states and orthonormalization

ok, i see, but the example in the book has the initial wavefunction given as Y(x,0)=Cexp(-|x|/x0) where C and x0 are constants, is it possible to get this function into a similar format??
8. ### Superposition of states and orthonormalization

that is not given, the only thing it asks for in this part of the problem is what value of C is required to normalize Y(x,0)...
9. ### Eigenfunction and Eigenvalue Confusion

its the operator...
10. ### Superposition of states and orthonormalization

Homework Statement Consider a particle in a superposition of states given at time t=0 by Y(x,0)=C(y1(x)+y2(x)), where y1(x) and y2(x) are the stationary states with energies E1 and E2 respectively. if y1(x) and y2(x) are orthonormalized, what value of C is required to normalize Y(x,0)...
11. ### Eigenfunction and Eigenvalue Confusion

\psi is psi, and i mean [x] times \psi would be [x]Acos(kx).
12. ### Eigenfunction and Eigenvalue Confusion

wait, so x is the operator and if it multiplies times Acos(kx) or Acos(kx)+iAsin(kx) then wouldn't it be the same as multiplying x(psi)???
13. ### Eigenfunction and Eigenvalue Confusion

ok thanks, i think I have bridged the gap in my knowledge, one more quick question though...in Acos(kx)+iAsin(kx) the i doesn't play a role does it? I mean its just like a negative sign??
14. ### Eigenfunction and Eigenvalue Confusion

ok, that makes some sense, so since the position operator [x] is just x, then all of the functions are eigenfunctions...similarly, the potential energy operator [U] is just the potential energy function. In this case the function is zero so since its [U]=0 all the functions are eigen functions...
15. ### Eigenfunction and Eigenvalue Confusion

Homework Statement given the following functions: y(x)= Acos(kx) y(x)=A sin(kx)-Acos(kx) y(x)=Acos(kx)+iAsin(kx) y(x)=A d(x-x0) Which are eigenfunctions of the position, momentum, potential energy,kinetic energy, hamiltonian, and total energy operators Homework Equations y(x) is...
16. ### Calculating the width of the box for a particle in a box

Homework Statement A ruby laser emits light of wavelength 694.3 nm. If this light is due to the transition from n=2 to n=1 state of the electron in a box, what is the width of the box? Homework Equations K=2pi/Lambda kL=npi The Attempt at a Solution Thinkin about the problem, i...
17. ### Projectile corrections due to the coriolis effect

Homework Statement a projectile is launched at an angle \alpha above the horizontal, from the top of a vertical cliff of height h above the ocean. It strikes a distance d from teh base of the cliff. Show that its maximum height is given by H2 +(d2/4)tan2\alpha/(H+d tan\alpha) neglecting air...
18. ### Spring on a tilted table with air resistance

Homework Statement an object of .4kg is attached to a spring with given spring constant 400 N/m. it is moving on a tilted table, that is at 30 deg from teh horizontal. The table is frictionless, but there is a dampening force -bv proportional to velocity. when the object is driven, the...
19. ### Is this a simple harmonic question or no?

there is no spring at all mentioned in this problem...only that a force proportional to its distance from the origin is applied to the particle.
20. ### Forces extra credit problem

ok i see where your comin from the derivative of the vector with respect to time is the vector with the derivatives of the components with respect to time
21. ### Is this a simple harmonic question or no?

Is this a simple harmonic question or no?? Homework Statement a particle moves on the x axis under the influence of a force, proportional to its distance from the origin, attracting it toward the origin. The particle starts from rest @x=10cm and reaches x=5cm in 2 seconds for the first time...
22. ### Forces extra credit problem

so your tellin me that these functions are vectors? Ok i can dig it, so i take the derivative with respect to time and i'll have the velocity, take it again and i'll have the acceleration. That seems to be too simple, but i'll try it
23. ### Analytical mechanics

ok I see now, so the equations now would be mgcos(theta)= fn, and -mgcos(theta)(uK)+(-bv)+mgsin(theta)=ma
24. ### Analytical mechanics

ok but i'm not seein it? the block is on a ramp, so with the incline mg is straight down while the normal force is perpendicular to the surface of the ramp at angle theta. So i don't quite see how to solve for the velocity...
25. ### Forces extra credit problem

well what concepts are those??, I am just a newbie afterall...
26. ### Forces extra credit problem

well they're the derivatives with respect to x...can it really be that simple???
27. ### Forces extra credit problem

Homework Statement an object moves according to x=3m exp(-2/s t), y=4msin(3/s t), z=-5cos(3/s t) find the velocity and the acceleration. Homework Equations The Attempt at a Solution I am unsure what this means, i am doing this for extra credit for my physics class in college(civil...
28. ### Analytical mechanics

No, i understand the normal force is Fn(normal force) cos(theta). And as for the equations thats just my understanding of the forces on the block, the one set equal to (ma) is the equation for motion of my system as i believe...
29. ### Analytical mechanics

Homework Statement a block(mass m), is sliding down a long straight ramp with angle theta, this block is undergoing frictional forces(mu) and air resistance proportional to the speed of the block. In its sliding the block reaches a terminal velocity. Determine the equation of motion and...