Your story has to include one part of constant forward motion, one part of constant backward motion and a period of stationary. For the part of forward motion, it has at least to be 10 seconds time duration with a minimum of 100 meter in length. For the part of backward motion, it must be at least 5 seconds time duration with a minimum of 50 meter in length. The object has to stop at least for 5 seconds during the direction changes. During the whole motion, the object has to stay on a straight line. (10 points)

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?