Will a flat sheet of paper dropped from a height of 2 meters accelerate at the same rate as an identical sheet of paper crumpled into a ball? Why or why not?

After a big snowfall, you take your favorite rocket-powered sled out to a wide field. the field is 195 m across, and you know that your sled accelerates at a rate of 3.65 m/s2 when the rocket is on. how much time will it take the sled to cross the field starting from rest, assuming the rocket is on the whole time?

The speed of light can be used to measure the

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is