You fire a projectile at an angle along flat ground, giving it an initial horizontal velocity of 8.43 m/s and an initial vertical
velocity of 7.07 m/s.
(the resulting initial speed is vo = 11 m/s at an angle of
00 40 degrees above the horizontal)
How long is the projectile in the air? 1
=
х
S
What is the projectile's speed as it passes through the highest
point in its trajectory? -11
x m/s

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.