The fundamental frequency of a pipe that is open at both ends is 564 hz . part a how long is this pipe?

Which type of current is produced by a wire breaking magnetic field lines and changing the polarity? a. alternating b. direct c. straight d. alternating and direct

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2