This is urgent - number of charges trough...
hello
I can't figure out why the next formula tells us the number of charges that move trough cross-sectional area of the conductor.
If a segment of wire has N charges moving with average velocity v, then in time [delta]t the number of...
hello
I just realized I'm having some trouble figuring out the relationship between conservation of momentum and kinetic energy and internal energy in isolated system.
We learned that total momentum gets conserved if two object collide in isolated system.
But when learning about...
The more I read on thermal energy more confused I get:cry:
1-If we have different types of substance all containg same amount of atoms,then the amount of heat required to raise the temperature of each will depend solely on how much of heat does individual substance transform into other types...
I'm sorry but I can't think of a better way to ask question 1. I hope you can figure it out though since I really would like to understand it!
But text said that W(i)=N*3/2*k*T for ideal gas doesn't depend on pressure and volume. If we have to remove amount of heat that equals the work done...
hello
How does macroscopic kinetic energy KE get transformed into internal energy?
Car bumps into trash can and small dent is made in the car.Dent is caused
by force from trash can over certain distance (i.e. car gave part of its KE to trash can and trash can gave part of its KE back to...
hello
First question-Internal energy W(I) of an ideal gas consists only of internal kinetic energy (thermal energy) W(KE).
W(I) = W(KE)
If at temperature T there are N molecules in an ideal gas,then total W(I) is
W(I) = N*3/2*k*T
We see from above formula that W(I) of ideal gas...
And that is the reason we only define temperature as a property for a large number of particles that are moving randomly,but can't define it for single molecule?
hello
First question - If only force acting on an object is gravitational force then total mechanical energy TME of system is conserved. What about when two objects, each with it's own kinetic energy, collide in an isolated system?
Is total mechanical energy of a system conserved (the way...
Why would there be a slight delay? If forces ( that includes both F1 and F2 ) happen simultaneously and if object A is next to B, then A won't travel any distance before hitting B, so the moment A feels force F1, B should feel force F2.
So why would F2 be smaller than F1-where did that...
May I ask just one more question?
If objects A and B are positioned next to each other (touching) in isolated system and I apply force to A for just a brief instant, then same force will be applied to B and B will exert same force back to A. B will start moving and if force I exerted on A...
hi
1-I'm not shure that it is possible for two objects A and B to exert force on each other, with A exerting 5 N and B exerting 9 N at the same time. If it is, then due to Newton's third law A will also exert reactionary force -9 N back on B and B will exert reactionary force -5 N back on A...
I hope I'm not breaking any rules by doing this, but can't you guys help me some more? The stuff I asked about are basics, all of physics I have yet to learn is built up on this.:cry: