HELP ME ASAP PLZ :'(

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

The plum pudding model of the atom states that ?

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?