A sphere has a charge of -6.40 x 10-7 coulomb. Approximately how many electrons must be removed to make the sphere neutral? a. 2.50 x 10-13 c. 4.00 x 1012
b. 1.60 x 1012 d. 7.03 x 1024

Which of the following represents an upright image? a. -do b. +m c. -m d. +do

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 sound characteristic is not affected by the relative motion of an object