10. provide the time dilation equation found in section 15.4 of the text. explain each step of the
derivation.

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

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration