Plane water waves in a ripple tank pass through a narrow gap
in a barrier.
a) draw the appearance of the waves when the gap is much
larger than the wavelength of the water waves.
b) draw the appearance of the waves when the gap is the
same size as the wavelength of the water waves.
explain why designers must choose the size of a harbour
entrance carefully if boats moored there are to be in
calm water.

Your answer is 32 hope i  

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.