can a system have infinite energy but finite power?

Question

anonymous · Answer

signal processing?

anonymous · Answer

Sure.  It just needs to have the infinite energy for an infinitismal (zero) time.

anonymous · Answer

@Libniz :yes signal processing

anonymous · Answer

well, no real life system could have infinite energy

but sinosoid signal have infinite energy and finite power

anonymous · Answer

@Libniz :How come  a sinosoidal signal have infinite energy if it ain't practical?

anonymous · Answer

sinosoidal signal is never ending , hence inifinite energy

anonymous · Answer

but if you try to find power , you get finite result

anonymous · Answer

@Libniz :Thanks. it's clear now

anonymous · Answer

you are welcome, signal processing is my favorite topic in engineering

anonymous · Answer

@Libniz : can you help me with another one? Do you know why $$\omega=2$$*pi(f)?

anonymous · Answer

is it part of larger problem?

anonymous · Answer

no it just came to my mind...you know we use this formula in every other numerical everyday but I just don't know from where this equation come from?

anonymous · Answer

$$w=2\pi (freq)$$

anonymous · Answer

$$\omega $$ is angular frequency(measured in radian per/second), f is cycle frequency(cycle/second).

in one cycle there are 2pi radians 

hence

$$\omega=2\pi f$$

anonymous · Answer

oh thank you very much :)