1. A bullet is moving towards a block as shown in the picture. The bullet after the collision sticks into the mass of 2 kg: (25 points)What should be the minimum speed of the bullet so the bullet and mass are lifted the height shown in the picture? Hint: Use trigonometry to find ”h” and use the conservation of momentum and energy!

Sorry i don’t know what to do

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.