Two crates, one heavy and one light, are at rest on a waxed floor. which crate will need the greater force to give the same change in speed? explain.

The heavy box because the light weight has less mass, which makes it go faster and effortless, compared to the heavy box that will go slower and need more strength.

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.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2