Recent content by elsamp123

Wow! I see what you're saying! so then the (x+y)/2 part would be the avg. angular frequency? I hope I'm not wasting your time with all these silly questions.. i know how in a regular standing wave, the (x+y)/2 part is the phase freq and the (x-y)/2 is the envelope freq.. is that the same here too?

I know that it should be a standing wave kind of motion right? If so, then how would I get the x and y to form the parts to it?

Homework Statement Find the amplitude, frequency and period of a particle whose distance from the origin is described by x=4cos(5t)sin(8t) Homework Equations The Attempt at a Solution Would sin x - sin y = 2 cos [(x+y)/2] sin [(x-y)/2] be a worthwhile expression to try?

Thank you so very much! You are very kind! :)

So I would go: ω/2∏ \int^{ω/(2∏)}_{0} 1/2 m (dx/dt)2? so would P.E go from 0 to A then? Thanks a ton btw! you really helped me get started with this HW

Homework Statement consider a system with a damping force undergoing forced oscillations at an angular frequency ω a) what is the instantaneous kinetic energy of the system? b) what is the instantaneous potential energy of the system? c) what is the ratio of the average kinetic energy to the...

Thanks a ton.. Sorry for the late reply, i finally was able to figure it out whew!

Homework Statement Express as z = Re[Ae^(i(\varpi t+ \alpha)] 1. z = cos(\varpi t - \pi/3) - cos (\varpit) 2. z= 2sin(\varpi t) + 3 cos (\varpi t) 3. sin(\varpi t ) - 2 cos (\varpi t - \pi/4) + cos (\varpi t) Homework Equations I used cos A + cos B; A = (a2+b2)(1/2); and tan(\theta) = y/xThe...