Recent content by tburke2

I am in my third year of ungrad physics and am preparing to take the physics GRE. I've never really memorized formulas or needed to regurgitate anything besides the most basic mathematical axioms. I have learned physics almost completely intuitively, I have a pretty bad memory for exact formulas...

Homework Statement I'm given a driven, dampened harmonic oscillator (can it be thought of as a spring-mass system with linear friction?) Is it possible to solve the equation of motion using Lagrangian mechanics? I could solve it with the usual differential equation x''+βx'+ωₒ²x=fₒcos(ωt) but as...

Sorry, the transformer coils are oppositely wound so a dot should be on top of the left coil and on the bottom of the right coil. The circuit is dependent on the non-linear characteristics of the transistor. Can Kirchoffs laws be used to find the voltage across the cap?

I have the following circuit that I need to calculate the voltage across the capacitor as a function of time. Standard variables for the component values, voltage drops, currents, ect. You'll notice that the voltage (at the top right corner) oscillates at a frequency dependent on the...

A transverse wave on a cord is represented by D(x,t)=0.22 sin (5.6 x + 34 t) Determine the velocity of the wave and the minimum and maximum speeds of the particles in the cord.So velocity can be found with v = f λ f = ω / 2π and λ = 2π / k so v = ω / k = 34 / 5.6 = 6.1 I assume...

Is there a formula that will give me the equation for the line of best fit of a data set, the line being a 6th degree polynomial? I know how to graph the table and add a line of best fit while showing the equation but as far as I know the equation cannot be used in the given format in excel. If...