Efundamental frequency of an open organ pipe corresponds to the middle c (261.6 hz on the chromatic musical scale). the third resonance of a closed organ pipe has the same frequency. (assume that the speed of sound in air is 343 m/s.) (a) what is the length of the open pipe

What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?

Select the three ways that the parallel-plate capacitor differs from a car battery.