luna02525 said:Find the speed of a car if the tone of the horn drops by 36 percent as it passes you. The speed of sound is 340 m/s. Answer in units of km/h.
f'=f(v/(v-v_source)
The formula for solving the speed of a car is distance divided by time. In this case, the distance would be the 36% horn drop distance and the time would be the time it takes for the sound to travel at a speed of 340m/s.
The 36% horn drop distance is the distance the car travels between the time the horn is honked and the time the sound reaches the listener. This distance can be determined by measuring the time it takes for the sound to reach the listener and multiplying it by the speed of sound (340m/s).
Yes, the 36% horn drop distance can be affected by external factors such as wind speed, temperature, and air pressure. These factors can alter the speed of sound and therefore affect the distance traveled by the sound.
The 36% horn drop is a commonly used standard in calculating the speed of a car. It takes into account the time delay between the honking of the horn and the sound reaching the listener, which can be affected by external factors. Using this percentage allows for a more accurate calculation of the car's speed.
Yes, there are limitations to using this method. It assumes that the speed of sound is constant and that there are no external factors affecting the 36% horn drop distance. In reality, these factors can vary and affect the accuracy of the calculation. Additionally, this method does not take into account the acceleration or deceleration of the car, which can also impact its speed.