Recent content by pokemon123

I am attempting to solve part b of this question. I start with the equation A=L^2/4 and I get dA=L/2(dl). Next I find dA/dt=L/2(dL/dt) and I realize dL/dt=v. Thus I get -d(flux)/dt=-BLv/2. Finally, I use emf/R=I. I get -BLv0/2R=I. However, the answer is BLv0/4R=I. I understand dA is supposed to...

ah I see, Thanks! this definitely makes me understand the concept of work energy thereom better. thank you too kuruman!

so the concept of work I've never really understood (even after a year and a half of physics classes rip). What mainly confuses me is when the work done is positive or negative. From what I understand the net work=deltaKE or net work=-PE assuming energy is conserved (so if an external force was...

Perhaps I'm wrong but is "storage battery" another term for capacitor? If so, I believe the capacitance is double as they are in parallel so you add the capacitance of each "storage battery" together. Q/V=C 2Q/V=2C. Voltage must remain the same since they are in parallel. If I'm wrong I...

Homework Statement I have been asked to calculate the momentum of a photon in that has been ejected as a gamma ray after a nucleus was excited in terms of the Energy. I am confused as to whether or not I can use two different equations Homework Equations E=mc^2 or E=hf λ=h/p The Attempt at a...