A 1500kg car has applied forward force of 5000N and experiences an air resistance of 1250N. What is the car's acceleration

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.

What is the frequency if a wave that pases a given pount 22 times in 2 seconds

The receptor cells that convert light energy into neural signals are called