354693 A toy-car, blowing its horn, is moving with a steady speed of \(5\;m/s\), away from a wall. An observer, towards whom the toy car is moving, is able to hear 5 beats per second. If the velocity of sound in air is \(340\;m/s\), the frequency of the horn of the toy car is close to :
354693 A toy-car, blowing its horn, is moving with a steady speed of \(5\;m/s\), away from a wall. An observer, towards whom the toy car is moving, is able to hear 5 beats per second. If the velocity of sound in air is \(340\;m/s\), the frequency of the horn of the toy car is close to :
354693 A toy-car, blowing its horn, is moving with a steady speed of \(5\;m/s\), away from a wall. An observer, towards whom the toy car is moving, is able to hear 5 beats per second. If the velocity of sound in air is \(340\;m/s\), the frequency of the horn of the toy car is close to :
354693 A toy-car, blowing its horn, is moving with a steady speed of \(5\;m/s\), away from a wall. An observer, towards whom the toy car is moving, is able to hear 5 beats per second. If the velocity of sound in air is \(340\;m/s\), the frequency of the horn of the toy car is close to :
354693 A toy-car, blowing its horn, is moving with a steady speed of \(5\;m/s\), away from a wall. An observer, towards whom the toy car is moving, is able to hear 5 beats per second. If the velocity of sound in air is \(340\;m/s\), the frequency of the horn of the toy car is close to :