Bohr found experimental evidence for his atomic model by studying

a) the electron cloud
b) line spectra
c) quarks
d) atomic mass

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

An electron is traveling with initial kinetic energy k in a uniform electric field. the electron comes to rest momentarily after traveling a distance d. (a) what is the magnitude of the electric field

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.