URGENT!!
True or false: Light waves, gamma rays, and ocean waves are all 3 examples of energy traveling in waves.

Asample of silver (with work function ? = 4.52 ev) is exposed to an ultraviolet light source (? = 200 nm), which results in the ejection of photoelectrons. what changes will be observed if: silver is replaced with copper (? = 5.10 ev) more photoelectrons ejected no photoelectrons are emitted fewer photoelectrons ejected more energetic photoelectrons (on average) less energetic photoelectrons (on average)

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?