A vertical rectangular plate a units long by b units wide is submerged in a fluid of weight-density w, with its upper long edge along the fluid's surface. Find the average value of the pressure along the vertical dimension of the plate, and explain your answer.

Describe uniform velocity and variable velocity in short

In the first law of thermodynamics, triangle e=q-w, what does q stand for

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?