Astone is dropped from height of 50m on earth. at the same time , another stone is thrown vertically upwards from the ground with a velocity up from the ground of 50m/s . at what height from the ground will the two stones meet (g= -10m/s^2)

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference

Which of the following list the divisions of the geologic time scale in order from longest to shortest

Give me a example of a decomposer. explain what would happen if decomposers were absent from a forest ecosystem