100 cm are equivalent to 1 m. How many cm are equivalent to 3 m?

300 cm

Explanation:

if 100 cm is 1 m, then do 1 x 3 = 3. Which means that 100 x 3 = 300 cm

300 cm.

Explanation:

If you know that 100 cm = 1 m, simply multiply either by 3 to find the answer.

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.