A pendulum has a mass of 0.75 kg and a rope length of 0.3 m. describe the energy transformations expected by this oscillating system. include a conservation of energy equation. the starting height of the pendulum is 0.15 m. b. what is the maximum velocity of the pendulum mass?
c. what is the position of the pendulum when it reaches its maximum velocity?
d. what is the position of the pendulum when it reaches minimum velocity?​

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?