do you have a a ball point pen that snap in and out? If you do it try this is Press the plunger down the spring in the pen now has energy (kinetic or potential?

Asubmarine has a "crush depth" (that is, the depth at which water pressure will crush the submarine) of 250 m. what is the approximate pressure (water plus atmospheric) at this depth? (recall that the density of seawater is 1025 kg/m3, g = 9.81 m/s2, and 1 kg/(ms2) = 1 pa = 9.8692 10-6 atm.) a. 34.8 atm b. 24.8 atm c. 25.8 atm d. 7.8 atm

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

In science and physics what is the standard unit of measure for speed?