During the backstroke, the pressure inside the syringe is reduced below the atmospheric pressure. Atmospheric pressure pushes the water into the syringe.
chrispohmomanyi answered the question on October 4, 2017 at 05:57
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Date posted: October 4, 2017. Answers (1)
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Date posted: October 2, 2017. Answers (1)
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Date posted: October 2, 2017. Answers (1)
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Date posted: October 2, 2017. Answers (1)