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

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### Physics Problem: Sinking Sphere in Water

#### Problem Statement:
A sphere of radius 0.100 meters 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

_____________________

This problem involves concepts of buoyancy, displacement, and density. The following steps can be used to solve it:

1. **Calculate the Mass of Displaced Water:**
   - Use the volume of the sphere to find the mass of the water displaced, using the density of water (approximately 1000 kg/m³).

2. **Determine the Buoyancy Force:**
   - The buoyant force can be equated to the weight of the water displaced.

3. **Find the True Mass of the Sphere:**
   - Using the apparent weight and the buoyant force, calculate the true weight and thus the true mass of the sphere.

4. **Calculate the Density of the Sphere:**
   - Use the mass and volume of the sphere to find its density.

These steps involve fluid mechanics principles such as Archimedes' Principle and basic physics concepts like density and volume calculations. Follow along for detailed solutions and explanations.
Transcribed Image Text:### Physics Problem: Sinking Sphere in Water #### Problem Statement: A sphere of radius 0.100 meters 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 _____________________ This problem involves concepts of buoyancy, displacement, and density. The following steps can be used to solve it: 1. **Calculate the Mass of Displaced Water:** - Use the volume of the sphere to find the mass of the water displaced, using the density of water (approximately 1000 kg/m³). 2. **Determine the Buoyancy Force:** - The buoyant force can be equated to the weight of the water displaced. 3. **Find the True Mass of the Sphere:** - Using the apparent weight and the buoyant force, calculate the true weight and thus the true mass of the sphere. 4. **Calculate the Density of the Sphere:** - Use the mass and volume of the sphere to find its density. These steps involve fluid mechanics principles such as Archimedes' Principle and basic physics concepts like density and volume calculations. Follow along for detailed solutions and explanations.
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