Explain why a more streamlined car will generally will have better fuel economy than a bulkier car that has the same mass

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.

it's a b and

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle