Calculate the pressure produced by a force of 8o0 acting on an area of 0.2 metre square

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

What happens in a global convection 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?