Recent content by defmar

My fundamental question is, do opposing magnetic fields eventually degrade each other over time? If they do, is there a way to mitigate or eliminate their ability to degrade one another? If I had one permanent magnet facing up and another permanent magnet facing down hovering over it (with the...

Thank you. I knew I brain-farted something obvious. At this point I found it easier to plug the V_i/V_f value back into the P_i*(V_i)^γ = P_f*(V_f)^γ equation and solve for: P_f = P_i*(V_i/V_f)^γ. Thank you again

Thank you so far. I took (V_i/V_f)^(2/3) = 2 ==> (V_i/V_f) = 2*SQRT(2). I then attempted to apply both Charles and Gay-Lussac's law to come up with: P_f/P_i = 2*SQRT(2) ==> P_f = P_i*2*SQRT(2), but this is not correct. I'm sure I'm missing something obvious and simple, but I'm oblivious to it yet.

I don't know. I would say either 2 or 1/2, but that'd just be me guessing. Or I can say it's (V_i/V_f)^(2/3) - but that doesn't help me either. I don't know how to make sense of this because the problem is none of constant volume, temperature or pressure.

In that case I'm getting an equation that reduces to (V_f/V_i)^γ = V_i/(2*V_f). I don't know the initial or final volume or how to solve from here.

A monatomic ideal gas (γ = 5/3) is contained within a perfectly insulated cylinder that is fitted with a movable piston. The initial pressure of the gas is 1.31 × 105 Pa. The piston is pushed so as to compress the gas, with the result that the Kelvin temperature doubles. What is the final...

Thank you. I'm getting T_f = [T_0*(V_0+A*ΔX)*X_f/A] / [(X_0*V_0)/A] solving :)

An ideal gas is confined to a cylinder by a massless piston that is attached to an ideal spring. Outside the cylinder is a vacuum. The cross-sectional area of the piston is A = 2.50*10^-3 m^2. The initial pressure, volume, and temperature of the gas are, respectively, P0, V0 = 6.00*10^-4 m^3 and...