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.

User Account

All Pages