7. A sphere of radius 0.100 m is placed in a container of water and immediately begins sinking toward the bottom of the container. Once the object is completely submerged in the water, the apparent weight of the object is 69.8 N. Find: a) The mass of water displaced b) The buoyancy force on the sphere c) The true mass of the sphere d) The density of the sphere

7. A sphere of radius 0.100 m is placed in a container of water and immediately begins sinking toward the bottom of the container. Once the object is completely submerged in the water, the apparent weight of the object is 69.8 N. Find: a) The mass of water displaced b) The buoyancy force on the sphere c) The true mass of the sphere d) The density of the sphere

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter4: Physics Of Matter

Section: Chapter Questions

Problem 26P: . A juniper-wood plank measuring 0.25 ft by 1 ft by 16 ft is totally submerged in water, (a) What is...

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. A juniper-wood plank measuring 0.25 ft by 1 ft by 16 ft is totally submerged in water, (a) What is its weight? (b) What is the buoyant force acting on it? (c) What is the size and the direction of the net force on it?
A man of mass m = 70.0 kg and having a density of = 1 050 kg/m3 (while holding his breath) is completely submerged in water, (a) Write Newtons second law for this situation in terms of the mans mass m, the density of water , his volume V, and g. Neglect any viscous drag of the water, (b) Substitute m = V into Newtons second law and solve for the acceleration a, canceling common factors, (c) Calculate the numeric value of the mans acceleration, (d) How long does it take the man to sink 8.00 m to the bottom of the lake?
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. A box-shaped piece of concrete measures 3 ft by 2 ft by 0.5 ft (a) What is its weight? (b) Find the buoyant force that acts on it when it is submerged in water. (c) What is the net force on the concrete piece when it is underwater?
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