What is the value of acceleration due to gravity at the equatorial region of the earth
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In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.