Two toroidal solenoids are wound around the same form so that the magnetic field of one passes through the turns of the other. solenoid 1 has 690 turns and solenoid 2 has 450 turns. when the current in solenoid 1 is 6.60 a, the average flux through each turn of solenoid 2 is 3.50×10-2 wb.

a: what is the mutual inductance of the pair of solenoids?

b: when the current in solenoid 2 is 2.60 a, what is the average flux through each turn of solenoid 1?

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.