Recent content by polarbearkids

Yup. sorry! kN/m kiloNewtons per meter

Homework Statement 1 question: How much work must be done to launch a 100-kg object to a height of 2 x 10^3 kilometer above the Earth's surface? 2.A person with the mass of 10 kg jumps up and down on her mattress with a spring constant of 4.3 nK.m. She does this by applying a sinusoidal...

Yes! This is exactly what I wanted. Thank you so much, this is starting to make sense. Now, I have two final questions. Will R = √[(A1+A2cos∅)^2 + (A2sin∅)^2] always be true or is it just when A2>A1? would R = √[(A1+A2cos∅)^2 + (A1sin∅)^2] if A2<A1. I don't think it would be, I just want to...

But yes, that is what I am wondering about. What if the amplitudes are different. Even though, I strayed from this in my last post. Take the example of the lines of y1=3cos(4x-1.6t) and y2= 4sin(5x-2t -.250), how would you go about finding the new amplitude of the combined waves at any...

Okay, I feel a little stupid and I was just frustrated! My question was more along these lines. What if they did not give us the x and t, but they gave us the phase shift as .25, so the question would be along the lines of y1=3cos(4x-1.6t) and y2= 4sin(5x-2t -.250) and we were asked to find the...

Homework Statement The question asks us to find the superposition of 2 waves where y1=3cos(4x-1.6t) and y2= 4sin(5x-2t) and find the superposition of the waves y1 + Y2 at x=1 and t =0.5 Homework Equations The Attempt at a Solution Okay, what confuses me. is my teacher explained...