2 Page Apparatus: A dynamic trolley, ticker timer, ticker tape, mass blocks, metre stick, trolley runner way Ticker-timer Trolley String Pulley m Ticker-tape Mass Set up the apparatus as shown above or as in any Physical Science textbook 1. What do you think could be the function of the mass block in this experiment?

Ais the answer hope this

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.

Ray 2 should cross through the focal point on the right side of the lens

Aand b antarctica is a north pole.  field lines enter earth near the north pole.the magnetic pole near antarctica is a north pole.compasses point toward a magnetic pole that is a north pole.field lines circle earth from east to west.a compass can lead a hiker to the geographic north pole.