Recent content by Burner

Correct me if I'm wrong, but after a bit more reading and thinking: For the purposes of a useful transfer function, the constant term can be dropped because it is representative of an initial condition, right?

Thank you, but let me try to clarify a bit. I don't require getting it back into the time domain. I'm just trying to find the transfer function with an output Y for an input X (in the s domain). To illustrate the problem I am encountering, simplifying you'll get Y(s4 + s2) = g + sX. The...

Homework Statement Just a generic question. If you have Laplace-transformed differential equation like s3Y + sY = g/s + X, where g is a constant, how do you handle manipulating the equation to get the transfer function Y/X? I feel like I've done this before, but I'm having a severe mental...

Oh my goodness, thank you so very much! You just made my day! :-D

All right, thanks. The image from the first lens is 110 cm to the right from the second lens. Applying the thin lens equation: 1/-110 + 1/x = 1/20 -> x = 220/13 ~~ 16.92 cm OR 1/110 + 1/x = 1/20 -> x = 220/9 ~~ 24.4 cm (which is where I got the 24.4 from before) So, the image from the...

Homework Statement Two converging lenses with focal lengths of 40 cm and 20 cm are 10 cm apart. A 2.0-cm-tall object is 60 cm in front of the 40-cm-focal-length converging lens. a. Use ray tracing to find the position and height of the image. do this accurately with a ruler. Determine the...