Jeffrey is on his skateboard and starts skating down a ramp. Ten seconds later he is travelling at
20.0 m/s. What was his acceleration

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

The three types is stress that act on earths rocks are compression, tension, and