An organ tuner is comparing the fundamental pitch from a certain closed-end organ pipe that is 59.9 cm long
to the sound from an electronic signal generator set to a pitch of 151 hz. the pipe is located in an
environment in which the speed of sound is 346 m/s. how many beats per second will the organ tuner hear?

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.