A hurdler is 0.535 m from a hurdle when he jumps at 6.82 m/s at a 67.9 degree angle. what is his height when he clears the?

chemical properties of thing

the answer is b i think

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.

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this