All Questions
Tagged with mathematics materials
8
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How do you derive the formula for converting weight percent to atom percent?
I have the following equations for weight and atom percent:
Where m is the mass of each element.
where A is the atomic weight of each element and m prime is the mass of each element.
And I'm told ...
- 21
2
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4
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Swing safety: maximum load of beam (supported at one end, free with load on the other)
My husband and his dad built a fort for our two boys. Coming off of one side of the fort is a 4x6 wooden beam with a tire swing attached at the end. It is supported on one side by the fort, but not ...
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3
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Calculate area of mesh?
I have expanded steel mesh that I use to make garden cages:
I would like to know how much sunlight the mesh blocks.
I think I need to calculate the area that the mesh takes up (per square inch) and ...
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Help with determining the dimension change in the xyz direction of a component under a load?
I'm stuck on this question. I got the first part right which is to work out the dimension change in the x direction but I got the y and z directions wrong. I had to submit this online and it doesn't ...
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Can a simple application of two forces have two different outcomes on a rigid body?
[Summary: If two forces are such that the component of one of these forces forms a couple with the other, than which of the two cases (obtaining resultant via adding forces or obtaining moment and a ...
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3
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Graphene distribution over a sphere
How much graphene is required to coat a 5 inch (diameter) sphere if the graphene layer must be 35 nanometers thick?
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Custom heavy gauge machine table to support clothes dryer
Background
Looking to build a table for a dryer to fit inside a laundry closet. The table must be assembled inside the closet, as such it has three parts: two legs and a metal sheet for the table top. ...
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Variation of LED light as a function of distance
I'm trying to use LED's as a point source of light for a project I have.
a crucial idea is that the intensity of the light of the led falls off as 1 over the distance squared as we move away from it. ...
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