A length of organ pipe is closed at one end. If the speed of sound is 344 m/s, what length of pipe is needed to obtain a fundamental frequency of 63 hz?.

Which notation is used to represent an alpha particle? a. b. c. d.

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?