- #1

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## Homework Statement

Double Integral Surface Area of Spherical Ball radius

## Homework Equations

##\int_S d\vec{S} = 4*\pi*a^2##

## The Attempt at a Solution

##\int\int_0^a f(r,?) dr d? = 4*\pi*a^2##

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- Thread starter Philosophaie
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- #1

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Double Integral Surface Area of Spherical Ball radius

##\int_S d\vec{S} = 4*\pi*a^2##

##\int\int_0^a f(r,?) dr d? = 4*\pi*a^2##

Last edited:

- #2

- 9,555

- 766

## Homework Statement

Double Integral Surface Area of Spherical Ball radius

## Homework Equations

##\int_S d\vec{S} = 4*\pi*a^2##

## The Attempt at a Solution

##\int\int_0^a f(r,?) dr d? = 4*\pi*a^2##

What is the dS element in spherical coordinates?

- #3

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##dS = r^2*sin\phi*d\theta*d\phi##

I can take it from here!

I can take it from here!

- #4

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Good. Remember the only two variables are ##\theta## and ##\phi##. The radius is constant.

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