Light that has a wavelength of 600 nm strikes a metal surface, and a stream of electrons is ejected from the surface. if light of wavelength 500 nm strikes the surface, the maximum kinetic energy of the electrons emitted from the surface will be

smaller

the same

greater

smaller by a factor of 5/6

unmeasurable

Two thin 80.0- cm rods are oriented at right angles to each other. each rod has one end at the origin of the coordinates, and one of them extends along the x- axis while the other extends along the yaxis. the rod along the x- axis carries a charge of - 15.0 μ c distributed uniformly along its length, and the other rod carries 15.0 μ c uniformly over its length. find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Carbon 14 is a naturally occurring stable