The distance versus time graph for Object A and Object B are shown. (3 points) Which object moves with changing speed?

Only Object B, because the graph has straight lines
Only Object A, because the graph starts from the origin
Both Object A and Object B, because the slope of the graph is the same throughout
Both Object A and Object B, because different distances are traveled in the same time interval

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?