Snorkelers breathe through tubes that extend above the surface of the water. in prin- ciple, a snorkeler could go deeper with a longer tube, but the extra pressure at the greater depth would make breathing too difficult. if a snorkeler can develop a pressure in her lungs that is 10 kpa below the pressure outside her body, what is the longest snorkel she could use in the ocean?

Diamond will scratch quartz. true or false

Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )