A whistling train travels past a person standing still. The height of the tone of the whistle sharply changes. If the train moves at 60 km/h then the percentage of the change in the tone from the actual frequency is (a) 15% (c) 20% (b) 10% (d) 25%

A whistling train travels past a person standing still. The height of the tone of the whistle sharply changes. If the train moves at 60 km/h then the percentage of the change in the tone from the actual frequency is (a) 15% (c) 20% (b) 10% (d) 25%

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter16: Waves

Section: Chapter Questions

Problem 65P: A string is 3.00 m long with a mass of 5.00 g. The string is held taut with a tension of 500.00 N...

See similar textbooks

Related questions

Q: mall plasticC ball suspended by a string of length L uniform electric field, as shown in the figure ...

Q: A planet rotates on an axis through its poles and 1 revolution takes 1 day (1 day is 24 hours). The ...

Q: Relate how surface tension is manifested in water showing water strider walking in the surface of a...

A: The surface tension in water is due to the Newton's Third Law. Every action have equal and opposite ...

Q: A basketball is rolling rightward onto the court with a speed of 4.0 m/s and slows down with a const...

Q: Two large charged plates of charge density +45µC/m² face each other at a separation of 7 mm. Choose ...

Q: 18. What is the average power developed by a motor as it lifts a 400.-kilogram mass at a constant sp...

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any sp...

Q: A=2i+5j+3k and B=-i+2j+3k Find : a) A.B b) A x B c) angle between A and B

Q: An object is moving along a straight line in the positive x direction. The graph shows its position ...

Q: Two batteries and a resistor are connected as shown. Ej = 20 V, E2 = 8.0 V, and R = 2.0 Q. What is t...

Q: In a historical movie, you observed a catapult being used by an army. It hurled a stone with a veloc...

Q: An Alaskan dog sled racer pulls his 75.0 kg sled at an angle of 40.0 degrees to the ground. He manag...

Q: Which of the following accurately depicts charging by induction?

A: Induction charging is a method used to charge an object without actually touching the object with an...

Q: If the distance from the source is doubled, the sound intensity of a spherical wave is * a. the sa...

A: Sound Intensity of a spherical level is given by Power per unit area.

Q: A boy pulls a wooden box along a rough horizontal floor at constant speed by means of a force P as s...

Q: In terms of energy unit, which does not belong? select the letter of your answer a. eV b.J Oc.V O d....

Q: Two spheres are made of the same metal and have the same radius, but one is hollow and the other is ...

A: (C)they expanded by the same amount.

Q: sounds different

A: Frequency is the number of oscillations the soundwave goes through. It determines pitch - what note....

Q: Which of the following is FALSE about electric interaction and magnetic interaction? Magnetic f...

A: Magnetic field never exists in monopole it always exist in dipole(north and south). Electric field (...

Q: question 1 A spring with a 4-kg mass and a damping constant 4 can be held stretched 1.5 meters beyon...

Q: A lab assistant has suspended a spring from a door frame. When an object is attached to the spring's...

Q: 34 An aluminum pie pan is attached to a string and suspended from a hook, as shown in the diagram be...

Q: A 9.6 kg ball is rolling at a speed of 3.8 m/s when it encounters a ramp. How high can it roll up th...

Q: A mass of 1.25 kg is attached to the end of a spring whose restoring force is 160 N The mass is in a...

Q: A charge of -1.97 x 10.5C produces an electric field of 740N/C at the origin in the +x direction. Wh...

Q: What is the sound intensity level of a sound with an W/m?? intensity of 1.7 x 10-4 dB

Q: The bottom of a heavy ble sandpaper. The block is repeatedly slid 1.0 met at constant speed across a...

A: 33) Given:- A stone is dropped in the air from a height of 50 meters above the ground. As the ston...

Q: A 1200 kg car is travelling at 25 m/s and hits a wall. If the wall applies 45,000 N of force to the ...

Q: Two resistors R1 = 6 Ω and R2 = 12 Ω are connected in parallel to each other and in series to R3 = 2...

A: Given data: Resistors values; R1=6 ΩR2=12 ΩR3=2 Ω

Q: A piece of lead (D = 11 300 kg/m3) weighs 14.7 N in air. What will be its apparent weight in alcohol...

A: Given: Dlead=11300 kg/m3Wair=14.7 NDalcohol=790 kg/m3

Q: A 7.3 microFarad capacitor is measured to have a reactance of 221 Ohm. At what frequency (in Hz) is ...

Q: All of the following wires are made of the same material but are of different sizes. Which wire has ...

Q: A particle is moving such that s =t-6t2 + 18t is in metres andt is in seconds. The minimum velocity ...

A: Here, we calculate the given as follow;

Q: If a rigid body is subject to planar motion in the xy-plane, then the angular momentum about the rig...

A: For a rigid body, the angular momentum (L) is the product of the moment of inertia and the angular v...

Q: 1. A man is dragging a trunk up the loading ramp of a mover's truck. The ramp has a slope angle of 2...

A: As per our guideline, I have solved the first question, Please post other questions separately.

Q: Prof. K. took a Tesla Model S for a test drive. The car weighs 4,500 lb and can accelerate from 0 to...

A: In this question we have to find the efficiency of the vehicle. Please give positive feedback if the...

Q: If the emf is 7.01 V, the capacitance 14.6 µF, and the resistance 282 2, find the time constant of t...

Q: Two resistors are connected in parallel to a 220 V line. R1=50 ohms and R2=100 ohms. What is the tot...

A: If two or more resistors are connected in parallel, then the potential difference across all the res...

Q: 11. Which of the following does not depict the correct link between technology and physics? (a) Opti...

Q: Find the image distance and image height of the image formed on the following cases. Then, describe ...

Q: 3 Charge distribution when negatively and positively charged body comes near to the negatively charg...

Q: The difference between internal process and external process. Give some examples?

A: Those Earth processes that develop within the interior of the Earth are known as internal processes....

Q: A dragster starts from rest and travels 1/4 mi in 6.70 s with constant acceleration. What is its ve...

A: Useful kinematical relations: If u be the initial velocity,a be the constant acceleration,v be the v...

Q: A 500 kg block is moving @ vo = 6.00 m/s along a frictionless Horizontal surface toward a spring wit...

Q: A long straight wire carries a current of 1.3 A. What is the magnitude of the magnetic field 0.83 m ...

Q: c) the rate at which energy is being stored in the capacitor ate = nW

Q: When moving from infinity to towards a negative point charge, the electric potential. select the let...

Q: If the electric charge of the ion is q and the mass of the ion is m, then the value of the ratio of ...

Q: Determine the sun's altitude ation at 23.58°N latitude.

A: We know that the formula of the declination angle is given as δ= 23.45°sin360365284+n where n is th...

Q: A 12-volt battery has an internal resistance of 0.001Ω, The starter motor of the car draws a current...

A: Given: V=12 V Ri=0.001ΩI=230 A

Q: The object on the table weighs 5.52 kilograms. The coefficient of static friction between the table ...

Concept explainers

Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.

Question

A whistling train travels past a person standing
still. The height of the tone of the whistle
sharply changes. If the train moves at 60 km/h
then the percentage of the change in the tone
from the actual frequency is
(a) 15%
(c) 20%
(b) 10%
(d) 25%

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

A sound wave in air has a pressure amplitude equal to 4.00 103 Pa. Calculate the displacement amplitude of the wave at a frequency of 10.0 kHz.
A cable with a linear density of =0.2 kg/m is hung from telephone poles. The tension in the cable is 500.00 N. The distance between poles is 20 meters. The wind blows across the line, causing the cable resonate. A standing waves pattern is produced that has 4.5 wavelengths between the two poles. The air temperature is T=20C . What are the frequency and wavelength of the hum?
A sound wave of a frequency of 2.00 kHz is produced by a string oscillating in the n=6 mode. The linear mass density of the string is =0.0065 kg/m and the length of the string is 1.50 m. What is the tension in the string?
Does a sound wave move faster in seawater or fresh water, if both the sea water and fresh water are at the same temperature and the sound wave moves near the surface? (w1000kgm3,s1030kgm3,Bw=2.15109Pa,Bs=2.34109Pa)
What is the wavelength of the waves you create in a swimming pool if you splash your hand at a rate of 2.00 Hz and the waves propagate at a wave speed of 0.800 m/s?
A string is fixed at both end. The mass of the string is 0.0090 kg and the length is 3.00 m. The string is under a tension of 200.00 N. The string is driven by a variable frequency source to produce standing waves on the string. Find the wavelengths and frequency of the first four modes of standing waves.
A string is 3.00 m long with a mass of 5.00 g. The string is held taut with a tension of 500.00 N applied to the string. A pulse is sent down the string. How long does it take the pulse to travel the 3.00 m of the string?
Transverse waves travel through a string where the tension equals 7.00 N with a speed of 20.00 m/s. What tension would be required for a wave speed of 25.00 m/s?
Show that the speed of sound in 20.0°C air is 343 m/s, as claimed in the text.
To increase the intensity of a wave by a factor of 50, by what factor should the amplitude be increased?
A sound wave traveling in air has a pressure amplitude of 0.5 Pa. What is the intensity of the wave?
Ultrasound of intensity 1.50102W/m2 is produced by the rectangular head of a medical imaging device measuring 3.00 cm by 5.00 cm. What is its power output?