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The sum of all the internal angles of a simple polygon is π(n−2) radians or 180(n–2) degrees, where n is the number of sides. The formula can be proved by using mathematical induction: starting with a triangle, for which the angle sum is 180°, then replacing one side with two sides connected at another vertex, and so on.
k = Coulomb constant = 8.987 × 10 9 N·m 2 /C 2 When the alpha particle passes close to the nucleus barely missing it, such that the impact parameter b is equal to the radius of a gold nucleus ( 7 × 10 −15 m ), the estimated deflection angle θ will be 2.56 radians (147°).
Ammonia is an inorganic chemical compound of nitrogen and hydrogen with the formula N H 3. ... 4 NH 3 + 3 O 2 → 2 N 2 + 6 H 2 O(g), ... [180] All other proposed ...
Due to relatively weak N–O bonding, all nitrogen oxides are unstable with respect to N 2 and O 2, which is the principle behind the catalytic converter, and prevents the oxygen and nitrogen in the atmosphere from combusting.
2.180 g/cm 3: Solubility in water. 74.8 g/100 mL(20 °C) ... Ammonium hexafluorophosphate is the inorganic compound with the formula NH 4 PF 6. It is a white water ...
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The sulfonic acid derivatives of 1-naphthylamine are used for the preparation of azo dye.These compounds possess the important property of dyeing unmordanted cotton.. An important derivative is naphthionic acid (1-aminonaphthalene-4-sulfonic acid), which is produced by heating 1-naphthylamine and sulfuric acid to 170–180 °C in the presence of crystallized oxalic acid.
= [2] where σ {\displaystyle \sigma } represents the applied true stress on the material, ϵ {\displaystyle \epsilon } is the true strain , and K {\displaystyle K} is the strength coefficient. The value of the strain hardening exponent lies between 0 and 1, with a value of 0 implying a perfectly plastic solid and a value of 1 representing a ...