How many times greater is the speed of sound in the rail

Assignment Help Physics
Reference no: EM13514673

Have you ever listened for an approaching train by kneeling next to a railroad track and putting your ear to the rail? Young's modulus for steel is Y = 2.0 1011 N/m2, and the density of steel is ? = 7860 kg/m3. On a day when the temperature is 30° C, how many times greater is the speed of sound in the rail than in the air? (Treat air as an ideal gas of particles with mass 4.78 10-26 kg and with ? = 1.40.)

Reference no: EM13514673

Questions Cloud

Impact on this years divisional operating profit : Assume the new testing equipment is rented and installed on December 31 - What will be the impact on this year's divisional operating profit?
How to calculate the h+ of the resulting solution : 100 mL of 0.150 M acid H2A are mixed with 100 mL of 0.1600 M NaOH. Calculate the [H+] of the resulting solution at equilibrium. Ka1 = 1.0 x 10^-5 Ka2 = 1.0 x 10^-7
Calculate the heaviest bowling ball : Bowling balls are roughly the same size, but come in a variety of weights. Given its official circumference of roughly 27.2 inches, calculate the heaviest bowling ball
How to calculate the titration constant : 200 mL of 0.150 M acid HA are mixed with 100 mL of 0.0800 M NaOH. Calculate the titration constant, kt, of the resulting reaction. Ka = 1.0 x 10^-5
How many times greater is the speed of sound in the rail : Have you ever listened for an approaching train by kneeling next to a railroad track and putting your ear to the rail. how many times greater is the speed of sound in the rail than in the air
Define how much carbon dioxide in kilograms is produced : How much carbon dioxide in kilograms is produced upon the complete combustion of 29.1 L of propane (approximate contents of one 5-gallon tank). assume that the density of the liquid propane in the tank is 0.621 g/mL.
Find the increase in the temperature of the brakes : A 2000 kg car is traveling at 15.0 m/s down a long mountain grade of 2.0%. The mountain road is 5.0 km long. What is the increase in the temperature of the brakes
Explain the ph of the solution and the percent ionization : A 16 ounce specialty coffee drink contains 200 mg caffeine. If all the caffeine is extracted and dissolved in an equal amount of water, what is the pH of the solution? What is the percent ionization
Calculate the budgeted manufacturing overhead rate : Calculate the budgeted manufacturing overhead rate and calculate the manufacturing overhead allocated during 2011.

Reviews

Write a Review

Physics Questions & Answers

  What is the final temperature of the heating element

A certain toaster has a heating element made of Nichrome resistance wire, What is the final temperature of the heating element

  Find force is applied to the driver by his seat belt

In a head-on collision, a car stops in 0.30{\rm s} from a speed of 30{\rm m}/{\rm s}. What force is applied to the driver by his seat belt during that fraction of a second

  Calculate the kinetic energy of the electrons

A beam of electrons is incident on two slits separated by a distance of 2.0E-6m. Calculate the kinetic energy of the electrons

  What is the frequency of the light used

Monochromatic light falls on a slit that is 3.50 multiplied by 10-3 mm wide. what is the frequency of the light used

  Compute the original speed of the mess kit

A 10.0 kg mess kit sliding on a frictionless surface explodes into two 5 kg parts, one moving at 4.5 m/s, due north, What was the original speed of the mess kit

  What uncertainty in its location must be tolerated

The speed of a certain electron is 350 km/sec. If the uncertainty in its momentum is 0.010%, what uncertainty in its location must be tolerated

  How much work is done by the gas in the balloon

For a real train the friction between the car and the track can be described by a friction coefficient, μ. Find out this coefficient assuming that the time it takes for the car to come to rest is 3 s.

  Find the magnitudes of the net magnetic fields

The drawing shows two perpendicular, long, straight wires, both of which lie in the plane of the paper. Find the magnitudes of the net magnetic fields at points A and B

  Find the electric field strength from the wire

Find the electric field strength from the wire. How long is each spring when hanging as shown.

  What is the velocity of the car after accelerationg

a typical maximum acceleration for a car is about 8 m/s^2, A sports car traveling at 20m/s accelerates at this rate for 1.25 seconds

  How many antinodes are in the standing wave

A student uses an audio oscillator of adjustable frequency to measure the depth of a water well. how many antinodes are in the standing wave

  Estimate the speed of the ring

A two meter long string is wrapped around the outside edge and the ring is dropped allowing the string to unwind as the ring falls. Find the speed of the ring after it reaches the end of the string

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!

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