Recent content by glover_m

Homework Statement Homework Equations What is the current entering the node. The Attempt at a Solution I=V/R P=IV -> 510/.470=1085V R(Inductor)=wL -> 2pi*60*1.25 = 471.24 R(Resistor)=V/I -> 1085/0.47 = 2308.74 R(Total)= sqrt(R(Resistor)^2+R(Inductor)^2) -> 2356.12 V=sqrt(2)*V(RMS) ->...

Homework Statement Homework Equations How do you come up with 2ud/(c^2-u^2) The Attempt at a Solution Here's my issue with this problem: I would expect that for the light from A1 to reach Earth it would be d/u-c, and the time for the light of A2 to reach Earth would be d/u-c +...

Homework Statement R1 = 6Ohms R2 = 4Ohms Homework Equations Find ia and ib. The Attempt at a Solution Ia = V/R = 27V/6Ohms = 9/2A Ib = I'm guessing that 3Ia = 27/2 and since that branch and ib are in parallel, Ib = 27/4A

still no luck, get like 4 equations but can't do anything with them.

ok yah i'll try that

Homework Statement Homework Equations Find i. The Attempt at a Solution I've been able to reduce the circuit and calculate the total current to be 6A, and the total resistance to be 2Ohms. I'm not sure however how to use that information to find i. Thanks

Prove Fn ≤ (7/4)n for all n, 0≤n Fn = Fn-1 + Fn-2 Let P(n) be true for some n = k, for 0≤k Let n = k+1 Fk+1 ≤ (7/4)k+1 LHS: Fk+1 = Fk + Fk-1 ≤ Fk-1 + (7/4)k ≤ (7/4)k-1 + (7/4)k This last line is where I'm stuck, I feel like either I messed up early on, or I'm missing a way of...