# Search results

1. ### Thermodynamics with styrofoam cooler

ehild, thank you for your reply and I apologize for this far too late of response. I figured out the answer to this problem after grinding the problem for a while. I am done with my final for the first part of physics! I can not wait for the second part in a week :) Thanks again and talk to you...
2. ### Thermodynamics with styrofoam cooler

Homework Statement A cubical styrofoam cooler 80cm on a side and 2.0 cm thick contains 2.0kg of ice at 0C. If it takes four hours for the ice to melt what is the outside temperature? K(st)=.02 w/m*K Homework Equations H=-KA (ΔT/ΔX) (conductive heat flow) The Attempt at a Solution Area...
3. ### Thermodynamic with inelastic collision

Thanks again for your inspiring words child, they most definitely resonate in my mind. I hope to get to the level of knowledge in physics that allows me to help other folks on here, your work is truly inspiring. I appreciate your time and knowledge with my regard to the PF team, you guys are the...
4. ### Thermodynamic with inelastic collision

Thanks for the guidance. I will definitely always keep that in the back of my mind when I am solving problems. Physics takes a great amount of practice, but it is worth it because it is real knowledge! Thanks again... I am still impressed! :)
5. ### Thermodynamic with inelastic collision

c=v^2/(2ΔT) I believe this is the answer. If it is, thanks for the indescribable genius -answering my question with knowledge loaded question! I hope I am not getting ahead of myself.
6. ### Thermodynamic with inelastic collision

I am not sure if I did anything before evaluating the kinetic energy. I am assuming the mass is not a limiting factor, and that energy change is actually indicated by the temperature change of 10 kelvin? Now, I just tried that mass and a couple of others and I still got the same answer. Does...
7. ### Thermodynamic with inelastic collision

Would this be right ehild? KE=1/2mv^2 KE=1/2(.1)(100)^2=500J ΔQ=500J m=.1 ΔT=10K ΔQ=mcΔT 500J=(.1kg)c(10k) c=500J/Kg*k
8. ### Thermodynamic with inelastic collision

Homework Statement [/B]A bullet traveling at 100 m/s strikes the wall inelastically. It is observed that the bullet's temperature rises by 10 Kelvin due to the collision. Find the specific heat capacity of the bullet if all of the bullet's energy goes into heat. Homework Equations ΔQ=mcΔT...
9. ### Rolling motion

Hey ehid, Thank you so much for the help! I was able to setup the problem and get the answer. I really appreciate the guidance. Peace
10. ### Rolling motion

Homework Statement A uniform sphere rolls down a 30 degree incline θ from height h. Initially, the solid is at rest. Find the acceleration for the center of the mass of the solid. I am not sure where to start with this problem. I started with the energy formulas, but I am not sure how to find...