JOCKO, WHO HAS A MASS OF 60 kg AND STANDS AT REST ON ICE, CATCHES
A 20 kg BALL THAT IS THROWN TO HIM
AT 10 km/h. HOW FAST DOES JOCKO AND
THE BALL MOVE ACROSS THE ICE?

hello there!

your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.

3.2x10^7

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.

b. a lightning bug, plug of grass, and a worm