Two 1 kg blocks are about to slide down frictionless inclined planes as shown below. Each block is 1 m high. Which statement is true A Block A will have a greater final speed because it has more time to accelerate as it slides down the ramp.

B. Block B will have a greater final speed because the sleeper slope allows it to fall faster

C. Block B will have a greater final speed because friction will have less time to slow it down

D. two blocks will have the same final speed because they have the same potential energy at the beginning of the experiment and will have the san Kinetic energy at the end

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.