The energy required to dislodge electrons from sodium metal via the photoelectric effect is 275 kj/mol . what wavelength of light, in nanometers, has sufficient energy per photon to dislodge an electron from the surface of sodium? express the wavelength in nanometers to three significant figures.

Why there is no inductive reactance in dc circuits

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question

This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?