Hi, I'm doing a presentation about the fermi paradox and I use the drake equation:
N = R_* \times f_p \times n_e \times f_I \times f_i \times f_c \times L
Where the symbols have their usual meanings. I don't understand why this would give the number of civilisations whose EM emissions are...
Homework Statement
Hi, I encountered a problem whilst doing problems involving transverse waves. If somebody could give me a pointer I would appreciate it. The question is:
"One end of a horizontal rope is attached to a prong of an electrically driven tuning fork that vibrates the rope...
Well it just says that they're within one wavelength, so the wavelength could be bigger than 0.09m? I know that v=\lambda f but this doesn't help since I only know the frequency.
Homework Statement
Hi, this is a problem regarding mathematical descriptions of waves. I've attached an imagine of the picture but I'll also type out the problem for clarity.
"A sinusoidal wave is propagating along a stretched string that lies on the x-axis. The distplacement of the string as a...
Hi, I'm attempting to do a question involving blood flowing through a blood vessel and I'm incredibly stuck and would appreciate some help. The question is as follows:
'A simplified model of blood flow through the human body makes the approximation that the flow I is proportional to the pressure...