Bird bones have air pockets in them to reduce their weight—this also gives them an average density significantly less than that of the bones of other animals. Suppose an ornithologist weighs a bird bone in air and in water and finds its mass is 42.3 g and its apparent mass when submerged is 2.61 g (the bone is watertight). (a) What mass (in g) of water is displaced? g (b) What is the volume (in cm3) of the bone? cm3 (c) What is its average density (in g/cm3)? g/cm3
Bird bones have air pockets in them to reduce their weight—this also gives them an average density significantly less than that of the bones of other animals. Suppose an ornithologist weighs a bird bone in air and in water and finds its mass is 42.3 g and its apparent mass when submerged is 2.61 g (the bone is watertight). (a) What mass (in g) of water is displaced? g (b) What is the volume (in cm3) of the bone? cm3 (c) What is its average density (in g/cm3)? g/cm3
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter14: Fluid Mechanics
Section: Chapter Questions
Problem 109AP: Bird bones have air pockets to reduce their weight—this also gives them an average density...
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Bird bones have air pockets in them to reduce their weight—this also gives them an average density significantly less than that of the bones of other animals. Suppose an ornithologist weighs a bird bone in air and in water and finds its mass is 42.3 g and its apparent mass when submerged is 2.61 g (the bone is watertight).
(a)
What mass (in g) of water is displaced?
g
(b)
What is the volume (in cm3) of the bone?
cm3
(c)
What is its average density (in g/cm3)?
g/cm3
Expert Solution
a) Weight of water displaced equals the difference between true and apparent weights.
b) Volume of the bone.
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