The volume of a solid using spherical coordinates

In summary, the conversation is about finding the volume of a solid using spherical coordinates, with specific constraints given by the equations of a cone and a sphere. The person seeking help is struggling and needs more information about the equations and how to approach the problem.
  • #1
tim@creighton
1
0

Homework Statement




using spherical coordinates find the volume of the solid outside the cone z^2=x^2+y^2 and inside the sphere x^2+y^2+z^2=2

Homework Equations



ρ=x+y+z ρ^2=x^2+y^2+z^2

dρdφdθ

The Attempt at a Solution



im lost
 
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  • #2
tim@creighton said:

Homework Statement




using spherical coordinates find the volume of the solid outside the cone z^2=x^2+y^2 and inside the sphere x^2+y^2+z^2=2

Homework Equations



ρ=x+y+z ρ^2=x^2+y^2+z^2

dρdφdθ

The Attempt at a Solution



im lost
You need to try something before we can provide help.

In your relevant equations, what is this: ρ=x+y+z ?

And this isn't even an equation: dρdφdθ.
 

Related to The volume of a solid using spherical coordinates

1. What is the formula for calculating the volume of a solid using spherical coordinates?

The formula for calculating the volume of a solid using spherical coordinates is V = ∫∫∫ρ²sin(ϕ)dρdϕdθ, where ρ is the radial distance, ϕ is the angle between the positive z-axis and the line segment connecting the origin to the point, and θ is the angle between the positive x-axis and the projection of the line segment onto the xy-plane.

2. How do spherical coordinates differ from Cartesian coordinates?

Spherical coordinates differ from Cartesian coordinates in that they use three variables (ρ, ϕ, and θ) to represent a point in 3D space, whereas Cartesian coordinates use three variables (x, y, and z). Spherical coordinates are based on a radial distance, an angle of inclination, and an angle of rotation, while Cartesian coordinates are based on perpendicular distances along the x, y, and z axes.

3. Why is spherical coordinate system useful for calculating the volume of a solid?

The spherical coordinate system is useful for calculating the volume of a solid because it allows for easier integration in certain cases, such as when the solid has a spherical or cylindrical symmetry. It also simplifies calculations involving curved surfaces and makes it easier to visualize the solid in 3D space.

4. Can spherical coordinates be used to calculate the volume of any solid?

No, spherical coordinates are not suitable for calculating the volume of all solids. They are most useful for calculating the volume of solids with spherical or cylindrical symmetry. For other types of solids, other coordinate systems may be more appropriate.

5. How does the volume calculated using spherical coordinates compare to the volume calculated using Cartesian coordinates?

The volume calculated using spherical coordinates may differ from the volume calculated using Cartesian coordinates, depending on the shape of the solid and the points chosen for integration. However, for solids with spherical or cylindrical symmetry, the two methods should yield the same result.

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