What is the average electric current in a wire, when a charge of 150 c passes in 30 s?

Which type of microscope would allow the viewer to see ribosomes inside a cell?

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?

How is zig zagging a form of acceleration?