Three charges are located at the vertices of a triangle, as shown. an isosceles triangle lying on its side. the two charges at the corners of the base of the isosceles triangle are labeled +5 c and +10 c. the top of the triangle is labeled +4 c with 4 vectors from it. the one east is labeled y, the one west is labeled w, the one northeast is labeled x and the one southeast is labeled z. which vector best represents the net force acting on the +4 c charge in the diagram? w x y z

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

Uppose we consider the system of the three capacitors as a single "equivalent" capacitor. given the charges of the three individual capacitors calculated in the previous part, find the total charge qtot for this equivalent capacitor. express your answer in terms of v and c.

Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c.what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?