A duck in a lake swims 10 m south, 23 m west and 30 m north. The direction of the duck's displacement is A) 139 right to left degree

B) 41 right to left degree

C) 221right to left degree

D) 319 right to left degree

protons in

the largest known star in the universe is uy scuti, a hypergiant with a radius around 1,700 times larger than the

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.