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Reactance is defined as the imaginary part of electrical impedance, and is analogous to but not generally equal to the negative reciprocal of the susceptance – that is their reciprocals are equal and opposite only in the special case where the real parts vanish (either zero resistance or zero conductance). In the special case of entirely zero ...
The harmonic mean of a set of positive integers is the number of numbers times the reciprocal of the sum of their reciprocals. The optic equation requires the sum of the reciprocals of two positive integers a and b to equal the reciprocal of a third positive integer c. All solutions are given by a = mn + m 2, b = mn + n 2, c = mn.
The main factor cited in the closing of retail stores in the retail apocalypse is the shift in consumer habits towards online shopping. [22] Holiday sales for e-commerce increased by an estimated 11% to 20% from 2015 to 2016.
O n Thursday afternoon, President Donald Trump signed a memorandum calling for “fair and reciprocal” tariffs on all U.S. trading partners, directing his advisors to begin calculating new ...
The FTC announced it will send refunds to some Fashion Nova customers after it says the retailer engaged in “deceptive review practices.”
(The Center Square) – President Donald Trump over the weekend laid down a controversial, across-the-board tariff against China. One aspect of Trump’s ongoing crackdown on trade with China may ...
Online shopping is a form of electronic commerce which allows consumers to directly buy goods or services from a seller over the Internet using a web browser or a ...
Customer reviews are a form of customer feedback on electronic commerce and online shopping sites. There are also dedicated review sites, some of which use customer reviews as well as or instead of professional reviews. The reviews may themselves be graded for usefulness or accuracy by other users.