Three sleds are being pulled horizontally on frictionless horizontal ice using horizontal ropes. The pull is of magnitude 125 N. Find the acceleration of the system.

a electromagnetic waves

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.

force tends to be low and long diustance masses are high