A light of wavelength 445nm falls on a piece of metal, the maximum energy of the electron doubles when light of wavelength 225nm is used. Find the work function.

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Anybody wanna ? (picture included? )

Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?