Estimate the frequency observed by a person on platform

Assignment Help Physics

Reference no: EM13653881

A commuter train blows its horn as it passes a passenger platformat a constant speed of 40.0 m/s. The horn sounds at a frequency of320 Hz when the train is at rest. What is the frequency observed bya person on the platform

(a) as the train approaches

(b) as the train recedes from him?

Reference no: EM13653881

Questions Cloud

Explain what is the mole percent of na2co3 in the mixture : The CO2 generated occupies a volume of 0.800 L at 1.24 atm and 26 degrees Celsius. What is the mole percent of NA2CO3 in the mixture if the total grams of the mixture is 5 grams

What is the acceleration of the rock down the slope : A rock is on a slope at an angle of 34.5degree, with respect to the horizontal. The mass of the rock is32.7 kg. What is the acceleration of the rock down the slope

Explain how many grams of potassium fluoride can be produced : How many grams of potassium fluoride (KF) can be produced from the reaction of 92.3 g of potassium with 55.5 g of fluorine gas. The balanced equation of the reaction is: 2 K(s) + F2(g) --> 2 KF(s)

How does that profession factor into the play : what it is about sales that is uniquely positioned to permit Miller's critique, and how does that profession factor into the play?

Estimate the frequency observed by a person on platform : A commuter train blows its horn as it passes a passenger platformat a constant speed of 40.0 m/s. What is the frequency observed bya person on the platform

Modernist version of regionalism : Fitzgerald's story "The Ice Palace" offers a modernist version of regionalism. How does the story's treatment of region differ from earlier treatments, and why might it do so?

What was the change in internal energy of the gas : An ideal gas has its pressure cut in half slowly, while being kept in a container with rigid walls. What was the change in internal energy of the gas during this process

What is the angle of this force on the ladder : A 75 kg window cleaner uses a19 kg ladder that is 5.1 m long. He places one end on the ground2.2 m from a wall, rests the upper endagainst a cracked window, and climbs the ladder. He is 3.5 m up along the ladder when the window breaks.

Evaluate the heat absorbed during this expansion : An ideal gas expands isothermally, performing 4.1 x 103J of work in the process. Calculate the heat absorbed during this expansion

User Account

All Pages