The hero of a western movie listens for an oncoming train by putting his ear to the

Question:

The hero of a western movie listens for an oncoming train by putting his ear to the track. Why does this method give an earlier warning of the approach of a train than just listening in the usual way?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

University Physics with Modern Physics

ISBN: 978-0133977981

14th edition

Authors: Hugh D. Young, Roger A. Freedman

See More Books

Question Posted: Oct 30, 2018 12:06 PM

See More Questions

In western movies, the hero sometimes detects an approaching train by listening to the railroad tracks. If the tracks are made of steel, how many times faster does sound travel in the tracks than in...
In a movie, the hero jumps straight down from a bridge onto a small boat that continues to move with no change in velocity. What physics is being violated here?
In a movie, the hero jumps straight down from a bridge onto a small boat that continues to move with no change in velocity. What physics is being violated here? Discuss.
True or False Financial ratios are the principal tools of financial analysis because they standardize financial information so that comparisons can be made between firms of varying sizes.
A power line carries a current of 95 A west along the tops of 8.5-m-high poles. (a) What is the magnitude and direction of the magnetic field produced by this wire at the ground directly below? How...
Using the information from BE14- 11, determine the issue price of the bonds, assuming that the market rate of interest is 12% and prepare the journal entry to record the bond issue under IFRS using...
Confirm that the definition of the streamfunction given in the text satisfies the continuity equation. Use this in the N-S equation and derive the form for the $E^{4}$ operator in spherical...
Jills Job Shop buys two parts (Tegdiws and Widgets) for use in its production system from two different suppliers. The parts are needed throughout the entire 52-week year. Tegdiws are used at a...
A rainfall record contains 44 years of rainfall measurement at 10 minute intervals. The maximum rainfall amounts for intervals of 10 min and 20 min, 30 min, 40 min, 50 min, and 60 min have been...
In discussions of business and society, why is there a tendency to focus on large rather than small- or medium-sized firms? Have the corporate ethics scandals of the early 2000s affected small- and...
When sound travels from air into water, does the frequency of the wave change? The speed? The wavelength? Explain your reasoning.
Would you expect the pitch (or frequency) of an organ pipe to increase or decrease with increasing temperature? Explain.
Explain the relationship between changes in opportunity costs and changes in behavior.
Why do you suppose that large, well-known companies such as Oracle, Starbucks, and Nextel prefer to have their shares traded on the NASDAQ rather than on one of the major listed exchanges, such as...
The table below gives the demand and supply schedules for sandwiches. a. What is the maximum price that consumers are willing to pay for the 200th sandwich? b. What is the minimum price that...
Treasury zeros pay a fixed amount at maturity. For example, a Treasury zero could be purchased on January 2, 2009, for $445.19 and might be worth $1,000 when it matures 25 years later. What is the...
Why would a company engage in FDI because the firms it supplies invested abroad?
Joanna is staring work with an annual salary of $40,000. If her salary increases by 5 percent a year, what will her salary be 40 years from now? If prices increase by 3 percent a year, how much...
Brake repair and muffler repair require many tools and other capital equipment that can be classified as shared or common inputs. a. What are some of these shared or common inputs in muffler and...
Rewrite Programming Exercise 7.5 using streams. Display the numbers in increasing order. Data from Programming Exercise 7.5 Write a program that reads in 10 numbers and displays the number of...
All birds, independent of their size, must maintain a power output of 1025 watts per kilogram of body mass in order to fly by flapping their wings. (a) The Andean giant hummingbird (Patagona gigas)...
The maximum height a typical human can jump from a crouched start is about 60 cm. By how much does the gravitational potential energy increase for a 72-kg person in such a jump? Where does this...
The food calorie, equal to 4186 J, is a measure of how much energy is released when food is metabolized by the body. A certain brand of fruit-and-cereal bar contains 140 food calories per bar. (a) If...
Take any two-digit number, where the digits are not the same like 44, or 77. Reverse the digits, to get a second number. One number will be larger than the other number, so now subtract the larger...
Simplify 0.25 + 1.8 5s +1 25. 26. 2+3.24 2-25 27. 28. (s+V2)(s-3) 29. 12 228 4s + 32 30. $4 6 2-16 31. s + 10 32-s-2 1 32. (s + a)(s + b)
The table below presents the statements of retained earnings for Labelle Corporation for 3 successive years. Certain numbers are missing. Required: Use your understanding of the relationship between...

The hero of a western movie listens for an oncoming train by putting his ear to the

Question:

Step by Step Answer:

Compression wav...View the full answer

University Physics with Modern Physics

Students also viewed these Physics questions