The work function of palladium is 5.22 ev.
(a) what is the minimum frequency of light required to observe the photoelectric effect on pd?
(b) if light with a 200 nm wavelength is absorbed by the surface, what is the velocity of the emitted electrons?

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

its a 5.5 n

glad that

answerscientific theory;