User Account

All Pages

How fast is the train moving

Assignment Help Physics
Reference no: EM13541041

As you stand by a railroad track a train passes with its whistle blowing. As it passes, you hear a frequency shift equal to 24% of the frequency of the whistle. How fast is the train moving. Express your answer in km/hr. (Speed of sound is 331.4 m/s)

Reference no: EM13541041

Questions Cloud

Calculate the magnitude of the electrostatic potential : An electron is moved from point A to point B in a uniform electric field and gains 5.28×10-15 J of electrostatic potential energy. Calculate the magnitude of the electrostatic potential difference between the two points.
Calculate the magnitude of the accelerations : In the path shown below, the locations of a car driving around a track are shown at EQUAL time intervals where ?t = 20 s. The car starts with speed 40 m/s at x0 and uniformly slows down to 20 m/s from x0 to x2. The car then travels at a constant spee..
What is the speed of the passenger relative to the shore : Two boats are heading away from shore. Boat 1 heads due north at a speed of 2.90 m/s relative to the shore. Relative to Boat 1, Boat 2 is moving 28.2° north of east at a speed of 1.63 m/s. A passenger on Boat 2 walks due east across the deck at a spe..
What are the magnitude and direction of the resultant force : Consider the following figure. (The four charges are at the corners of a square. Take q = 1.08 µC and Q = 2.30 µC.) In the figure, what are the magnitude and direction of the resultant force on q1? (Take q1 as the origin of the coordinate system and..
How fast is the train moving : As you stand by a railroad track a train passes with its whistle blowing. As it passes, you hear a frequency shift equal to 24% of the frequency of the whistle. How fast is the train moving. Express your answer in km/hr. (Speed of sound is 331..
A horizontal rough surface over a distance : 1. A 50.0 kg block is pulled from rest by a force of 1000.0 N at an angle of 37.0° across a horizontal rough surface over a distance of 5.60 m. The coefficient of kinetic friction between the block and the surface is 0.500.
Lenses : Lenses
What is the magnitude of the electric force : Hanging from threads are two charged balls made of pith (a very light, spongy material that comes from inside the stems of certain plants). The balls each have a mass of 0.100 g and a charge of the same magnitude q and are attracted toward each ot..
A uniformly charged plastic disk has a radius : A uniformly charged plastic disk has a radius of 0.270 m. At what distance from the center along the central perpendicular axis is the magnitude of the electric field equal to one-half the magnitude of the field at the center of the surface of the di..

Reviews

Write a Review

Physics Questions & Answers

  Find the horizontal distance the arrow will travel

An arrow is shot at an angle such that it's horizontal velocity is 40 m/s, Find the horizontal distance the arrow will travel

  Find the mass of gas-gravitational force of earth exerted on

A container in the shape of a cube 20.0 cm on each edge contains air (with equivalent molar mass 28.9 g/mol) at atmospheric pressure and temperature 330 K. Find (a) the mass of the gas, (b) the gravitational force of the Earth exerted on it, and (c) ..

  What is the acceleration of his head

A bicycle has wheels with a diameter of 0.67m. It accelerates uniformly and the rate of rotation of its wheels increases from 191 rpm to 260 rpm in a time of 21.70 s. Find the linear acceleration of the bicycle.

  Find the minimum speed of a lead bullet

It is claimed that if a lead bullet goes fast enough, it can melt completely when it comes to a halt suddenly, Find the minimum speed of a lead bullet for such an event to happen

  Obtain the frequency of the tuning fork

Two out-of-tune flutes play the same note. One produces a tone that has a frequency of 243 Hz, What is the frequency of the tuning fork

  What force does the water exert on the falling pebble

At a distance rl from point charge the magnitude of the electric field created by charge is 248 N/C. After a distance r2 from the charge, field has a magnitude of 132N/C. Find ration r2/r1.

  What is the spring constant

A 140 g air-track glider is attached to a spring. The glider is pushed in 12.00 cm and released. A student with a stopwatch finds that 9 oscillations take 10.0 s.

  What amount of charge reaches the anode

A small metal bead, labelled A, has a charge of 29 nC. It is touched to metal bead B, initially neutral, so that the two beads share the 29 nC charge, but not of necessity evenly. When the two beads are then placed 5.0 {rm cm} apart, the force betwee..

  What is the potential at the center of the triangle

Charges 6.8 ?C, 6.1 ?C, and -1.5 ?C are brought from infinity to the respective vertices of an equilateral triangle with 11.0 cm sides. What is the potential at the center of the triangle

  How much energy is received by the eardrum

A 45 dB sound wave strikes an eardrum whose area is 4.1 × 10-5 m2. How much energy is received by the eardrum per second

  What is the acceleration due to gravity on planet surface

The mass of a certain planet is 6.15×1023 kg, and its radius is 2535 km. What is the acceleration due to gravity on the planet's surface

  How long would it take to reach at signal to noise

If you reach a magnitude m=20 at signal to noise of 10 in 5 seconds on a 2-m telescope, how long would it take to reach m=25 at signal to noise of 5 on an 8-m telescope at the same site

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd