Volume of the space region inside sphere outside coni

Join the discussion
Registration is free. Start your own thread to ask a follow-up.
2 replies · 2K views
melihaltintas
Messages
6
Reaction score
0

Homework Statement


Hi everybody i have a problem please help me (sorry for my bad english)

Homework Equations


volume of the space region inside sphere outside coni
z^2=x^2+y^2 coni
x^2+y^2+z^2 =1 sphere

The Attempt at a Solution


I am new in this forum , I search question like this and i found but i didn't solve this question with method that is performed other questions
 
Physics news on Phys.org
Hi melihaltintas

First, always plot the graph so you can understand how to find the limits.

I have attached the graph of the xz-trace coordinates (in the plane y = 0). The region of volume that you need to find is shaded in blue.

Start by finding the points of intersection of the sphere and cones (in the plane y = 0).

Your equations for the cones and sphere in the plane y = 0, become:
[tex]z^2=x^2<br /> \\x^2+z^2 =1[/tex]
Solve these two equations to find the x and z. From there, you'll be able to find the two required angles for ##\phi## which define the limits.

Finally, use the triple integral formula in terms of spherical coordinates:
[tex]\int \int \int \rho^2 \sin \phi d\rho d\phi d\theta[/tex]
 

Attachments

  • xz.gif
    xz.gif
    5.9 KB · Views: 565
Last edited: