A child throws a stone vertically upwards with an initial velocity of 14.9 m/s. What is the maximum height of the stone?

Which of the following represents an upright image? a. -do b. +m c. -m d. +do

Often called simply "velocity," this is the velocity of an object at a particular moment in time.

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.