A 4kg box rests on the floor. A man comes over and pushes it with a 30N force. If the box slides across the floor for 2s, how far will it go?

answer: b.

explanation:

this is a good question! i'll do some research and come back when i have 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.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr