Anatomy - Practical 4 Flashcards

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engineering

Hydrogen is burned with stoichiometric air in a steady-flow process in which the reactants are supplied at 100 kPa, 298 K. The products are cooled to 800 K in a heat exchanger. Find the heat transfer per kmol hydrogen.

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chemistry

Perchloric acid, HClO4, is the strongest of the halogen oxoacids, and hypoiodous acid, HIO, is the weakest. What two factors govern this difference in acid strength?

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chemistry

If a piece of hard, white blackboard chalk is heated strongly in a flame, the mass of the piece of chalk will decrease, and eventually the chalk will crumble into a fine white dust. Does this change suggest that the chalk is composed of an element or a compound?

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physics

When the lens in a person's eye becomes clouded by a cataract, the lens can be removed with a process called phacoemulsification and replaced with a man-made intraocular lens. The intraocular lens restores clear vision, but its focal length cannot be changed to allow the user to focus at different distances. In most cases, the intraocular lens is adjusted for viewing of distant objects, and corrective glasses are worn when viewing nearby objects. Should the refractive power of the corrective glasses be positive or negative?

Choose the best explanation from among the following: I. The refractive power should be positive-convergingbecause the intraocular lens will make the person farsighted. II. A negative refractive power is required to bring the focal point of the intraocular lens in from infinity to a finite value.

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Recommended textbook solutions

Hole's Human Anatomy and Physiology 13th Edition by David N. Shier, Jackie L. Butler, Ricki Lewis