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23 Nov 2019

A block of wood floats in a beaker of water. According to Archimedes 's principle, the block experiences an upward buoyant force. If the beaker with the water and floating block were weighed, would the measured weight be less than the sum of the weights of the individual components? Explain.

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Elin Hessel
Elin HesselLv2
12 Nov 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A wooden block floats in water, and a steel object is attached to the bottom of the block by a string as in Figure OQ14.3. If the block remains floating, which of the following statements are valid? (Chose all correct statements.)

(a) The buoyant force on the steel object is equal to its weight.

(b) The buoyant force on the block is equal to its weight.

(c) The tension in the string is equal to the weight of the steel object.

(d) The tension in the string is less than the weight of the steel object.

(e) The buoyant force on the block is equal to the volume of water it displaces.

A solid sphere of mass floats in a beaker of water as shown. A second sphere of the same material but of mass is placed in a second beaker of water. In the space provided, sketch the final position of the second sphere.

a. In its final position, how does the buoyant force on the larger sphere compare to its weight?

b. How does the volume displaced by the larger sphere compare to that displaced by the smaller sphere?

c. Are your answers to questions a and b consistent with Archimedes' principle? Explain.

The figure shows a rectangle wooden block floating in the reservoir with water. The block floats with exactly one-half of its volume below the waterline.

a. What is the buoyant force acting on the block?

b. The density of water is . What is the density of the block?

c. Masses are stacked on top of the block until the top of the block is level with the waterline. This requires of mass. What is the mass of the wooden block?

d. The wooden block is removed from the water bath and placed in an unknown liquid. In this liquid, only one-third of the wooden block is submerged. Is the unknown liquid more or less dense than water?

e. What is the density of the unknown liquid  ?

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