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  2. List of physical quantities - Wikipedia

    en.wikipedia.org/wiki/List_of_physical_quantities

    Ratio of circular arc length to radius radian (rad) 1: Power: P: Rate of transfer of energy per unit time watt (W) L 2 MT −3: extensive, scalar Pressure: p: Force per unit area pascal (Pa = N/m 2) L −1 MT −2: intensive, scalar (Radioactivity) Activity: A: Number of particles decaying per unit time becquerel (Bq = Hz) T −1: extensive ...

  3. Wikipedia:Free sound resources - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Free_sound_resources

    Custom HD 96khz 24 bit wav recorded sounds with ongoing free new sounds and The Suggestion Engine where creators can request sounds Royalty Free Videvo Sound Effects: Yes Yes Royalty Free Sound Effects with a large selection of free sound effects. Royalty Free Videvo Music: Yes Yes Royalty Free Music library with a large selection of free music ...

  4. Chenda - Wikipedia

    en.wikipedia.org/wiki/Chenda

    The circular frame is kept in a vessel, boiled for an entire day and then bent in the form of circle and dried. The body of the Chenda which is 1 foot (30 cm) in diameter and 1.5 inches (3.8 cm) in thickness is made of the soft wood of the jackfruit tree (വരിക്ക പ്ലാവ്) (Varikka Plavu). The thickness is again reduced by ...

  5. Wigner–Seitz radius - Wikipedia

    en.wikipedia.org/wiki/Wigner–Seitz_radius

    The Wigner–Seitz radius, named after Eugene Wigner and Frederick Seitz, is the radius of a sphere whose volume is equal to the mean volume per atom in a solid (for first group metals). [1] In the more general case of metals having more valence electrons, r s {\displaystyle r_{\rm {s}}} is the radius of a sphere whose volume is equal to the ...

  6. Archimedean spiral - Wikipedia

    en.wikipedia.org/wiki/Archimedean_spiral

    Starting with the horizontal diameter and the innermost concentric circle, the point is marked where its radius intersects its circumference; one then moves to the next concentric circle and to the next diameter (moving up to construct a counterclockwise spiral, or down for clockwise) to mark the next point.

  7. Area of a circle - Wikipedia

    en.wikipedia.org/wiki/Area_of_a_circle

    Let A′ be the point opposite A on the circle, so that A′A is a diameter, and A′AB is an inscribed triangle on a diameter. By Thales' theorem , this is a right triangle with right angle at B. Let the length of A′B be c n , which we call the complement of s n ; thus c n 2 + s n 2 = (2 r ) 2 .

  8. Circular uniform distribution - Wikipedia

    en.wikipedia.org/wiki/Circular_uniform_distribution

    A 10,000 point Monte Carlo simulation of the distribution of the sample mean of a circular uniform distribution for N = 3 Probability densities (¯) for small values of . Densities for N > 3 {\displaystyle N>3} are normalised to the maximum density, those for N = 1 {\displaystyle N=1} and 2 {\displaystyle 2} are scaled to aid visibility.

  9. Equivalent radius - Wikipedia

    en.wikipedia.org/wiki/Equivalent_radius

    In applied sciences, the equivalent radius (or mean radius) is the radius of a circle or sphere with the same perimeter, area, or volume of a non-circular or non-spherical object. The equivalent diameter (or mean diameter ) ( D {\displaystyle D} ) is twice the equivalent radius.