From a vantage point very close to the track at a stock car race, you hear the sound emitted by a moving car. you detect a frequency that is 0.86 times as small as the frequency emitted by the car when it is stationary. the speed of sound is 343 m/s. what is the speed of the car?

55.8 m/s

Explanation:

= Actual frequency of sound emitted by car

= frequency observed when the car moves =

= Speed of sound = 343 m/s

= Speed of car

Frequency observed is given as

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever