Two pont charges, q1 " 1.6 × 10-7 c and q2 "-6.8 × 10-s c, are held 37.0 ㎝ apart. (assume q2 is on the right.) (a) what is the electric field (in n/c) at a point 5.0 cm from the neg ative charge and along the line between the two charges? magnitude directionto the right d n/c (b) what is the force (in n) on an electron placed at that point?

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?