Abullet of mass 7.00 g is fired horizontally into a wooden block of mass 1.12 kg resting on a horizontal surface. the coefficient of kinetic friction between block and surface is 0.190. the bullet remains embedded in the block, which is observed to slide a distance 0.300 m along the surface before stopping. what was the initial speed of the bullet?

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.