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  2. arc length formula | MrExcel Message Board

    Jun 6, 2002 · I need some help from the math types out there for writing a formula for arc length. I have several formulas for calculating radius and springback. I build curves for wood molding. I wanted to input the varibles,chord and height, of radius to get the arc length. The formulas I …

  3. Formula for Electrical Arc Length - Physics Stack Exchange

    Jul 29, 2014 · I was playing with some High-Voltage the other day, when a question popped into my head. Can you calculate length of an electrical arc? It probably would be proportional to :- 1. Voltage of the source 2. Spark gap 3. Relative Humidity (in air only) 4. Resistivity of Medium 5. Shape of the Electrodes Can anyone come up with a dimensional formula ...

  4. What is the equation for the electrical arc length of an arc that has ...

    Dec 2, 2018 · As I pull the two contacts away the arc is sustained up to 4 inches. I want to find the equation for that. So if I was given a set voltage and amperage I would be able to figure out the arc length. So my question is this, what is the equation for the struck arc length distance that an arc with a certain power can sustain?

  5. Calculating the length of an arc | MrExcel Message Board

    Aug 25, 2015 · Hey guys, Im putting together a spreadsheet for work, and finding the length of an arc is something we often need to calculate. Theres plenty of webpages that I can just punch the numbers in, but Id like to have it in a spreadsheet, as there are …

  6. Why can we only use radians in the arc length formula?

    Dec 7, 2022 · Saying an angle is π 2 π 2 radians is saying "the ratio of the length of the arc to the radius of the arc is π 2 π 2 " or equivalently, "the length of the arc subtended by an angle θ θ in a circle of radius 1 1 is s s." That is why this formula works for radians and only radians.

  7. What's the difference between arc length and signed distance?

    The first formula gives you the arc length of the curve that describes the particle's motion in the x x - t t plane. It counts not only the accumulation of changes in position, but also the accumulation of changes in time.

  8. Finding the height of an arc? | MrExcel Message Board

    Feb 22, 2009 · 1. Radius 2. Arc width I know the math and excel formula to determine arc height if you know the cord length. B= R - sqrt (R2 - (A/2)2) B= arch height R=radius A = Chord Length But is it mathematically possible to solve for height when you only know the radius and arc width? Or am I even thinking in the right direction?

  9. XY value of a point along an arc? | MrExcel Message Board

    Sep 4, 2005 · Arc Length - 14.3826 Arc Radius - 36.6250 Arc Degrees - 22.5000 Arc Radians - .3927 Arc Chord - 14.2904 Arc Height - .7037 Here is what I am trying to find: If I specify the point at 2 degrees from the starting angle along the arc radius line, what would the X & Y values of that point be? Any help would be great as I am stumped on this formula ...

  10. Catenary equations solving for sag given distance and cable length

    May 21, 2019 · I know the distance between points, and the length of the cable between them, how can I calculate the sag? How to solve this eqn for x = f (s,d)? since I know both s and d. s = cable length = 2 * x * sinh ( d / ( 2 * x )) I tried the free versions of wolfram alpha and various other equation simplifiers, but they wont do this one.

  11. Center of mass of an arc - Physics Stack Exchange

    Feb 16, 2016 · Using Pappus theorem, we may determine xG x G by rotating the tube around the z-axis, giving half a sphere with radius R R. The surface area is A = 2πR2 A = 2 π R 2 and the length of the arc l l is Rπ/2 R π / 2 (quarter of a circle) so we get xG = A/(2πl) = 2πr2 2πRπ/2 = 2R/π x G = A / (2 π l) = 2 π r 2 2 π R π / 2 = 2 R / π.