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# disk vs washer method

Dec 21, 2020 · Even though we introduced it first, the Disk Method is just a special case of the Washer Method with an inside radius of r (x)=0. Example \PageIndex {4}: Finding volume with the Washer Method Find the volume of the solid formed by rotating the region bounded by y=x^2-2x+2 and y=2x-1 about the x …

• ### difference betweendisc method washer methodand shell

Jul 19, 2020 · Re: Difference between disc method, washer method and shell meth. Murray 12 Dec 2015, 05:22. Hi Shaikshavali. The disc method for finding a volume of a solid of revolution is what we use if we rotate a single curve around the x- (or y-) axis. If we do that and take slices perpendicular to the axis, we will produce a series of discs (like my watermelon example on this page:)

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• ### volume of revolution:disk method

Such a disk looks like a “washer” and so the method that employs these disks for finding the volume of the solid of revolution is referred to as the Washer Method. The following example demonstrates how to find a volume that is created in this fashion

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• ### ap calculus review:diskandwashermethods - magoosh blog

Dec 28, 2017 · A washer is like a disk but with a center hole cut out. The formula for the volume of a washer requires both an inner radius r1 and outer radius r2. We’ll need to know the volume formula for a single washer. V = π (r22 – r12) h = π (f (x) 2 – g (x) 2) dx

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• ### disc & washer methods challenge(practice) |khan academy

Practice: Disc & washer methods challenge. This is the currently selected item. Next lesson. Shell method. ... Washer method rotating around horizontal line (not x-axis), part 2. Washer method rotating around vertical line (not y-axis), part 1

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• ### when to use washer, shell or disk| physics forums

Feb 21, 2005 · When using washer, the segment is rotating perpendicular to the axis of rotation. This yields the integral where you have integral [(pi R^2)-(pi r^2)], where R is the radius of the larger disk or washer, and little r is (you guessed it!) the radius of the smaller or inner disk. Happy integrating!

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• ### generalizing the washer method(video) |khan academy

You can always use either, the difference is that the washer method takes the cross-section of your final shape, then rotates it, while the disk method subtracts the entire volume of the shape enclosed by g (x) from the shape enclosed by f (x)

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• ### solids of revolution by disks and washers

So the Washer method is like the Disk method, but with the inner disk subtracted from the outer disk

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• ### ap calculus review: disk and washer methods - magoosh blog

Dec 27, 2017 · A washer is like a disk but with a center hole cut out. The formula for the volume of a washer requires both an inner radius r1 and outer radius r2. We’ll need to know the volume formula for a single washer. V = π (r22 – r12) h …

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• ### 7.2: volume by cross-sectional area- disk and washer

Dec 21, 2020 · Even though we introduced it first, the Disk Method is just a special case of the Washer Method with an inside radius of r (x)=0. Example \PageIndex {4}: Finding volume with the Washer Method Find the volume of the solid formed by rotating the region bounded by y=x^2-2x+2 and y=2x-1 about the x -axis

Get Details
• ### volume of revolution: disk method

Such a disk looks like a “washer” and so the method that employs these disks for finding the volume of the solid of revolution is referred to as the Washer Method. The following example demonstrates how to find a volume that is created in this fashion

Get Details
• ### disc & washer methods challenge (practice) | khan academy

Practice: Disc & washer methods challenge. This is the currently selected item. Next lesson. Shell method. ... Washer method rotating around horizontal line (not x-axis), part 2. Washer method rotating around vertical line (not y-axis), part 1

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• ### difference between disc method washer method and shell

Jul 19, 2020 · Re: Difference between disc method, washer method and shell meth. Murray 12 Dec 2015, 05:22. Hi Shaikshavali. The disc method for finding a volume of a solid of revolution is what we use if we rotate a single curve around the x- (or y-) axis. If we do that and take slices perpendicular to the axis, we will produce a series of discs (like my watermelon example on this page:)

Get Details
• ### when to use washer, shell or disk | physics forums

Feb 21, 2005 · When using washer, the segment is rotating perpendicular to the axis of rotation. This yields the integral where you have integral [(pi R^2)-(pi r^2)], where R is the radius of the larger disk or washer, and little r is (you guessed it!) the radius of the smaller or inner disk. Happy integrating!

Get Details
• ### generalizing the washer method (video) | khan academy

You can always use either, the difference is that the washer method takes the cross-section of your final shape, then rotates it, while the disk method subtracts the entire volume of the shape enclosed by g (x) from the shape enclosed by f (x)

Get Details
• ### comparing washer and shell method- ximera

The method (washer or shell) The type of slice (vertical or horizontal) An important observation is that given any one of these three pieces of information, the others immediately follow. Here are a few examples. The region bounded by , , and is revolved about the -axis

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