An organ pipe is 2m long, open at one end, and closed at the other. What is the wavelength of the third harmonic for this organ pipe

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.

Abar magnet cut in half will form a total ofpoles. a)fourb)eightc)two

Which planet do you think would be easiest for humans to colonize some day?