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Description: 20.A block of wood has a density of 800 kg/m³. When placed in water, what percent of thevolume of the wood is above the surface?A. 0%, it sinksB. 20%C. 25%D. 80%E. 95%1

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20. A block of wood has a density of 800 kg/m³. When placed in water, what percent of the volume of the wood is above the surface? A. 0%, it sinks B. 20% C. 25% D. 80% E. 95%

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter11: Fluid Statics

Section: Chapter Questions

Problem 39PE: If your body has a density of 995 kg/m3, what fraction of you will be submerged when floating gently...

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Concept explainers

Fluid Pressure

The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.

Gauge Pressure

Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.

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20.
A block of wood has a density of 800 kg/m³. When placed in water, what percent of the
volume of the wood is above the surface?
A. 0%, it sinks
B. 20%
C. 25%
D. 80%
E. 95%
1

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