Finding the mass of a region given a density function The Next CEO of Stack OverflowFinding a mass of elipseIntegrals - center of mass of non-uniform density sphereFinding the mass of a cone using triple integralFinding volume of a cone given densityFinding mass of a sphere given density = $1-rho^2$ and radius = 1Centre of Mass of a Constant Density LaminaFinding the center of mass with varying densityFinding mass of enclosed region in first quadrant, change of variablesFinding center of mass of a solid with non-uniform densitymass density volume Integration
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Finding the mass of a region given a density function
The Next CEO of Stack OverflowFinding a mass of elipseIntegrals - center of mass of non-uniform density sphereFinding the mass of a cone using triple integralFinding volume of a cone given densityFinding mass of a sphere given density = $1-rho^2$ and radius = 1Centre of Mass of a Constant Density LaminaFinding the center of mass with varying densityFinding mass of enclosed region in first quadrant, change of variablesFinding center of mass of a solid with non-uniform densitymass density volume Integration
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I know that this involves multiple integrals and that density = mass / volume but I'm not sure how to set up the integrand given this information.
integration multivariable-calculus
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add a comment |
$begingroup$

I know that this involves multiple integrals and that density = mass / volume but I'm not sure how to set up the integrand given this information.
integration multivariable-calculus
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$begingroup$
You just need to integrate the density over the region.
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– saulspatz
Mar 27 at 18:41
add a comment |
$begingroup$

I know that this involves multiple integrals and that density = mass / volume but I'm not sure how to set up the integrand given this information.
integration multivariable-calculus
$endgroup$

I know that this involves multiple integrals and that density = mass / volume but I'm not sure how to set up the integrand given this information.
integration multivariable-calculus
integration multivariable-calculus
asked Mar 27 at 18:39
krauser126krauser126
636
636
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You just need to integrate the density over the region.
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– saulspatz
Mar 27 at 18:41
add a comment |
$begingroup$
You just need to integrate the density over the region.
$endgroup$
– saulspatz
Mar 27 at 18:41
$begingroup$
You just need to integrate the density over the region.
$endgroup$
– saulspatz
Mar 27 at 18:41
$begingroup$
You just need to integrate the density over the region.
$endgroup$
– saulspatz
Mar 27 at 18:41
add a comment |
1 Answer
1
active
oldest
votes
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Just like $textVolume=iiint 1dV$, we have $textWeight=iiinttextdensity,dV$. In fact, the volume calculation is a special case of the weight calculation: If the density is $1$, then the volume is the weight.
$endgroup$
$begingroup$
So this can only be done through triple integration? I'm currently studying for an exam and I've only learned up to double integration so maybe this is not something I should be studying for right now?
$endgroup$
– krauser126
Mar 27 at 18:53
$begingroup$
@krauser126 Triple integrals isn't anything more than double integrals. You have an integral whose integrand is an integral. Nesting it one more level doesn't really change anything.
$endgroup$
– Arthur
Mar 27 at 19:13
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Ahhh interesting. Doesn't seem too much more complex than double integrals. I think I managed to solve it. I got an answer of M = 6.5
$endgroup$
– krauser126
Mar 27 at 19:25
$begingroup$
@krauser126 That looks like the right answer.
$endgroup$
– Arthur
Mar 27 at 19:32
add a comment |
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1 Answer
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1 Answer
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active
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votes
$begingroup$
Just like $textVolume=iiint 1dV$, we have $textWeight=iiinttextdensity,dV$. In fact, the volume calculation is a special case of the weight calculation: If the density is $1$, then the volume is the weight.
$endgroup$
$begingroup$
So this can only be done through triple integration? I'm currently studying for an exam and I've only learned up to double integration so maybe this is not something I should be studying for right now?
$endgroup$
– krauser126
Mar 27 at 18:53
$begingroup$
@krauser126 Triple integrals isn't anything more than double integrals. You have an integral whose integrand is an integral. Nesting it one more level doesn't really change anything.
$endgroup$
– Arthur
Mar 27 at 19:13
$begingroup$
Ahhh interesting. Doesn't seem too much more complex than double integrals. I think I managed to solve it. I got an answer of M = 6.5
$endgroup$
– krauser126
Mar 27 at 19:25
$begingroup$
@krauser126 That looks like the right answer.
$endgroup$
– Arthur
Mar 27 at 19:32
add a comment |
$begingroup$
Just like $textVolume=iiint 1dV$, we have $textWeight=iiinttextdensity,dV$. In fact, the volume calculation is a special case of the weight calculation: If the density is $1$, then the volume is the weight.
$endgroup$
$begingroup$
So this can only be done through triple integration? I'm currently studying for an exam and I've only learned up to double integration so maybe this is not something I should be studying for right now?
$endgroup$
– krauser126
Mar 27 at 18:53
$begingroup$
@krauser126 Triple integrals isn't anything more than double integrals. You have an integral whose integrand is an integral. Nesting it one more level doesn't really change anything.
$endgroup$
– Arthur
Mar 27 at 19:13
$begingroup$
Ahhh interesting. Doesn't seem too much more complex than double integrals. I think I managed to solve it. I got an answer of M = 6.5
$endgroup$
– krauser126
Mar 27 at 19:25
$begingroup$
@krauser126 That looks like the right answer.
$endgroup$
– Arthur
Mar 27 at 19:32
add a comment |
$begingroup$
Just like $textVolume=iiint 1dV$, we have $textWeight=iiinttextdensity,dV$. In fact, the volume calculation is a special case of the weight calculation: If the density is $1$, then the volume is the weight.
$endgroup$
Just like $textVolume=iiint 1dV$, we have $textWeight=iiinttextdensity,dV$. In fact, the volume calculation is a special case of the weight calculation: If the density is $1$, then the volume is the weight.
answered Mar 27 at 18:42
ArthurArthur
121k7121207
121k7121207
$begingroup$
So this can only be done through triple integration? I'm currently studying for an exam and I've only learned up to double integration so maybe this is not something I should be studying for right now?
$endgroup$
– krauser126
Mar 27 at 18:53
$begingroup$
@krauser126 Triple integrals isn't anything more than double integrals. You have an integral whose integrand is an integral. Nesting it one more level doesn't really change anything.
$endgroup$
– Arthur
Mar 27 at 19:13
$begingroup$
Ahhh interesting. Doesn't seem too much more complex than double integrals. I think I managed to solve it. I got an answer of M = 6.5
$endgroup$
– krauser126
Mar 27 at 19:25
$begingroup$
@krauser126 That looks like the right answer.
$endgroup$
– Arthur
Mar 27 at 19:32
add a comment |
$begingroup$
So this can only be done through triple integration? I'm currently studying for an exam and I've only learned up to double integration so maybe this is not something I should be studying for right now?
$endgroup$
– krauser126
Mar 27 at 18:53
$begingroup$
@krauser126 Triple integrals isn't anything more than double integrals. You have an integral whose integrand is an integral. Nesting it one more level doesn't really change anything.
$endgroup$
– Arthur
Mar 27 at 19:13
$begingroup$
Ahhh interesting. Doesn't seem too much more complex than double integrals. I think I managed to solve it. I got an answer of M = 6.5
$endgroup$
– krauser126
Mar 27 at 19:25
$begingroup$
@krauser126 That looks like the right answer.
$endgroup$
– Arthur
Mar 27 at 19:32
$begingroup$
So this can only be done through triple integration? I'm currently studying for an exam and I've only learned up to double integration so maybe this is not something I should be studying for right now?
$endgroup$
– krauser126
Mar 27 at 18:53
$begingroup$
So this can only be done through triple integration? I'm currently studying for an exam and I've only learned up to double integration so maybe this is not something I should be studying for right now?
$endgroup$
– krauser126
Mar 27 at 18:53
$begingroup$
@krauser126 Triple integrals isn't anything more than double integrals. You have an integral whose integrand is an integral. Nesting it one more level doesn't really change anything.
$endgroup$
– Arthur
Mar 27 at 19:13
$begingroup$
@krauser126 Triple integrals isn't anything more than double integrals. You have an integral whose integrand is an integral. Nesting it one more level doesn't really change anything.
$endgroup$
– Arthur
Mar 27 at 19:13
$begingroup$
Ahhh interesting. Doesn't seem too much more complex than double integrals. I think I managed to solve it. I got an answer of M = 6.5
$endgroup$
– krauser126
Mar 27 at 19:25
$begingroup$
Ahhh interesting. Doesn't seem too much more complex than double integrals. I think I managed to solve it. I got an answer of M = 6.5
$endgroup$
– krauser126
Mar 27 at 19:25
$begingroup$
@krauser126 That looks like the right answer.
$endgroup$
– Arthur
Mar 27 at 19:32
$begingroup$
@krauser126 That looks like the right answer.
$endgroup$
– Arthur
Mar 27 at 19:32
add a comment |
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$begingroup$
You just need to integrate the density over the region.
$endgroup$
– saulspatz
Mar 27 at 18:41