A student standing on a train station observes that the pitch of the train decreases from...
A student standing on a train station observes that the pitch of the train decreases from 900.3 Hz to 880.3 Hz as it travels past the student at a constant speed. What's the speed of the train? (Assume the velocity of sound is 333 m/s).
Homework Answers
Given that
frequency f=900.3 Hz
appreant frequency f'=880.3 Hz
now we find the speed of the train
f/f'=v+vs/v-vs
900.3/880.3=333+Vs/333-Vs
299799.9-900.3Vs=293139.9+880.3vs
6660=1780.3Vs
Vs=3.741 m/s
Add Answer to:
A student standing on a train station observes that the pitch of
the train decreases from...
A train: A enters a train station with constant speed of .00 m/s while another train...
A train: A enters a train station with constant speed of .00 m/s while another train B leaves the train station with constant speed of 4.00 m/s. At a moment they are both at the same distance of 1 km from the train station they whistle two identical sounds of 400. Hz with acoustic power of 70.0 W each. A passenger standing on the station platform. No wind is blowing. (a) What is the frequency of the sound from A...
Manuel is pouring water into a long tube and observes that the pitch of the sound...
Manuel is pouring water into a long tube and observes that the pitch of the sound the water makes gets higher as the tube fills and the length of tube above the water level gets shorter. What are the frequencies of the sound made at each of the lengths shown? Assume the speed of sound is 340 m/s. length, m frequency, Hz 1.2 1.0 0.3
An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 464 Hz when the train is approaching him and 441 Hz when the train i...
An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 464 Hz when the train is approaching him and 441 Hz when the train is receding from him. Using these frequencies, he calculates the speed of the train. What value does he find? (Assume the speed of sound in air is 343 m/s.)
A train station bell gives off a fundamental tone of 500 Hz as the train approaches...
A train station bell gives off a fundamental tone of 500 Hz as the train approaches the station at a speed of 30.0 m/s. If the speed of sound in air is 339 m/s, what will be the apparent frequency of the bell to an observer riding the train?
4. In one of the original Doppler experiments, a tuba was played on a train at a speed of 60 km/h, at a constant frequency of 75 Hz, while a second identical tuba played the same note on the plat...
4. In one of the original Doppler experiments, a tuba was played on a train at a speed of 60 km/h, at a constant frequency of 75 Hz, while a second identical tuba played the same note on the platiorm at the railway station. Assume the observer is standing still on the platiorm on a day when the outside air temperature is 20° C a. What is the effect that is observed regardless of any sound from the tuba at...
An alert physics student stands beside the tracks as a train rolls slowly past. He notes...
An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 452 Hz when the train is approaching him and 427 Hz when the train is receding from him. Using these frequencies, he calculates the speed of the train. What value does he find? (Assume the speed of sound in air is 343 m/s.)
An alert physics student stands beside the tracks as a train rolls slowly past. He notes...
An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 473 Hz when the train is approaching him and 456 Hz when the train is receding from him. Using these frequencies, he calculates the speed of the train. What value does he find? (Assume the speed of sound in air is 343 m/s.)
Doppler Effect You are waiting at a train station when an approaching express train sounds its...
Doppler Effect You are waiting at a train station when an approaching express train sounds its 400 Hz horn, warning everyone to stand back from the platform as it passes. If you perceive the frequency of the horn to be 425 Hz as the train approaches, how fast must the train be moving towards you? You may assume the speed of sound is 343 m/s.
a train moving at a speed of 60 km/h sounds its whistle pitch to a frequency...
a train moving at a speed of 60 km/h sounds its whistle pitch to a frequency of 500 Hz. What frequency would be heard by an observer on the ground (i) ahead of the train (ii) behind the train. take the speed of sound as 332 m/s
A ball is thown horizontally from a train station platform directly into the path of a...
A ball is thown horizontally from a train station platform directly into the path of a huge locomotive traveling in the opposite direction. Assume the ball strikes the front of the locomotive at a perfectly flat and vertical location. Also assume the initial velocities of the ball and locomotive relative to the observer standing on the train station platform are 4.3 m/s and 86 m/s respectively. Determine the speed of the tennis ball relative to the observer standing on the...
A train: A enters a train station with constant speed of .00 m/s while another train B leaves the train station with constant speed of 4.00 m/s. At a moment they are both at the same distance of 1 km from the train station they whistle two identical sounds of 400. Hz with acoustic power of 70.0 W each. A passenger standing on the station platform. No wind is blowing. (a) What is the frequency of the sound from A...
4. In one of the original Doppler experiments, a tuba was played on a train at a speed of 60 km/h, at a constant frequency of 75 Hz, while a second identical tuba played the same note on the platiorm at the railway station. Assume the observer is standing still on the platiorm on a day when the outside air temperature is 20° C a. What is the effect that is observed regardless of any sound from the tuba at...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago