Two discs having masses in the ratio 1: 2 and radii in the ratio 1: 8 roll down without slipping one by one from an inclined plane of height h. the ratio of their linear velocities on reaching the ground

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

At what time will the interfering waves have an amplitudeof zero?

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?