I) The energy stored in wound watch spring is a) K. E
b) P. E
c) Heat Energy
d) Chemical Energy

Springs when non compressed has potential energy.

6 cos 34, 6 sin 34 trig

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.