Recent content by kasnay

I have a conceptual question about this problem. I can write the 3.5 kg block equation as Fnet(block 1)=(Force of tension)-(Force of friction)=m1a I can write the 2.8 kg block as Fnet(block 2)=(Force of tension)-(Force of gravity2)=m2a My question is this If I set the forces of...

Im trying to us 1.6*10^7 N/cm^2. this breaks to (kg*m/s^2)/cm^2. I need my units in terms of cm. So can I convert 1.6*10^7 kgm/s^2/cm^2 to 1.6*10^11 (kgm/s^2)/(m^2) then reduce to 1.6*10^11 kg/ms^2. The go back to cm and have 1.67*10^9kg/cms^2

okay thank you, well now my question is why did they bother putting it there if it could be cancelled?

so I have never seen this unit before. 10^-6m/mK for the thermal expansion (linear expansion). I believe this unit is micrometers divided by mili kelvins?

sorry for the late responce, thank you for your help

So i didnt think to expand the exp(1-.5exp) so that actually made it easy to look at. Your plot is in essence what i get when I use matlab. I programmed your simplified model and I get that same graph. A crest and trough that moves in the positive direction as time goes toward infinity. So I...

once again, i apologize. i have never used a forum for this before. n(z,t)=(3/2)(1.5/.5)(e-z(1-.5e-3t)-.5e-abs(z-3t)*sgn(z-3t))

the pde that i worked through (which was also previously done by another) was defined that boundary conditions are from z=0 to z=infinity.

Sorry please let me clarify. We are ignoring the y and x planes. The wave is traveling in the z direction away from the surface as time increase. What I am trying to do is modify the equation so that the wave starts at infinity far away and moves toward the surface as time increases. In essence...

I have an answer to a partial differential equation. I have the equation coded as followed. I am trying to get this wave to propagate back after it hits a given z value. Can anyone help me figure out the direction in this equation...