A 1.0 kg red ball moving at 5.0 m/s [East 30 degrees North] collides head-on with a blue ball of mass 4.0 kg in an inelastic collision. The blue ball was initially moving at 3.5 m/s [West 40 degrees North]. What is the final velocitity of: (a) the red and blue ball?

(b) the blue ball?

The plum pudding model of the atom state that ?

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

Which is not true about oxygen-17 and oxygen-18?