Modified Mastering Physics with Pearson eText -- Access Card -- for Physics (18-Weeks)
5th Edition
ISBN: 9780136781356
Author: Walker, JAMES
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 14, Problem 36PCE
(a)
To determine
The multiplicative factor by which the intensity is increased.
(b)
To determine
The increase in the intensity level when the distance between the source and observer is one third the initial distance.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Curve Fitter
CURVE FITTER
Open
Update Fit
Save
New
Exclusion Rules
Select Validation Data
Polynomial Exponential Logarithmic
Auto
Fourier
Fit
Fit
Duplicate Data
Manual
FILE
DATA
FIT TYPE
FIT
Harmonic Motion X
us
0.45
mi
ce
0.4
0.35
0.3
0.25
0.2
Residuals Plot
Contour Plot
Plot Prediction Bounds None
VISUALIZATION
Colormap Export
PREFERENCES EXPORT
Fit Options
COA Fourier
Equation
Fit Plot
x vs. t
-Harmonic Motion
a0+ a1*cos(x*w) +
b1*sin(x*w)
Number of terms
Center and scale
1
▸ Advanced Options
Read about fit options
Results
Value
Lower
Upper
0.15
a0
0.1586
0.1551
0.1620
a1
0.0163
0.0115
0.0211
0.1
b1
0.0011
-0.0093
0.0115
W
1.0473
0.9880
1.1066
2
8
10
t
12
14
16
18
20
Goodness of Fit
Value
Table of Fits
SSE
0.2671
Fit State Fit name
Data
Harmonic Motion x vs. t
Fit type
fourier1
R-square
0.13345
SSE
DFE
0.26712
296
Adj R-sq
0.12467
RMSE
0.030041
# Coeff
Valic
R-square
0.1335
4
DFE
296.0000
Adj R-sq
0.1247
RMSE
0.0300
What point on the spring or different masses should be the place to measure the displacement of the spring? For instance, should you measure to the bottom of the hanging masses?
Let's assume that the brightness of a field-emission electron gun is given by
β
=
4iB
π² d²α²
a) Assuming a gun brightness of 5x108 A/(cm²sr), if we want to have an electron beam with a
semi-convergence angle of 5 milliradian and a probe current of 1 nA, What will be the
effective source size? (5 points)
b) For the same electron gun, plot the dependence of the probe current on the parameter
(dpa) for α = 2, 5, and 10 milliradian, respectively. Hint: use nm as the unit for the
electron probe size and display the three plots on the same graph. (10 points)
Chapter 14 Solutions
Modified Mastering Physics with Pearson eText -- Access Card -- for Physics (18-Weeks)
Ch. 14.1 - Rank the following systems in order of increasing...Ch. 14.2 - Suppose the tension in a string is doubled, its...Ch. 14.3 - A particular harmonic wave is described by the...Ch. 14.4 - Which is faster: wave 1 in medium 1 with a...Ch. 14.5 - Enhance Your Understanding (Answers given at the...Ch. 14.6 - Observer 1 approaches a stationary 1000-Hz source...Ch. 14.7 - Prob. 7EYUCh. 14.8 - When a string oscillates with the standing wave...Ch. 14.9 - Rank the following systems in order of increasing...Ch. 14 - A long nail has been driven halfway into the side...
Ch. 14 - What type of wave is exhibited by amber waves of...Ch. 14 - In a classic TV commercial, a group of cats feed...Ch. 14 - Describe how the sound of a symphony played by an...Ch. 14 - A radar gun is often used to measure the speed of...Ch. 14 - When you drive a nail into a piece of wood, you...Ch. 14 - Explain the function of the sliding part of a...Ch. 14 - On a guitar, some strings are single wires, others...Ch. 14 - Prob. 9CQCh. 14 - A wave travels along a stretched horizontal rope....Ch. 14 - To determine: The speed of the waves Answer: The...Ch. 14 - The speed of surface waves in water decreases as...Ch. 14 - Prob. 4PCECh. 14 - A stationary boat bobs up and down with a period...Ch. 14 - Predict/Calculate A 4.5-Hz wave with an amplitude...Ch. 14 - Deepwater Waves The speed of a deepwater wave with...Ch. 14 - Prob. 8PCECh. 14 - Consider a wave on a string with constant tension....Ch. 14 - Suppose you would like to double the speed of a...Ch. 14 - Predict/Explain Two strings are made of the same...Ch. 14 - Predict/Explain Two strings are made of the same...Ch. 14 - Prob. 13PCECh. 14 - A brother and sister try to communicate with a...Ch. 14 - Predict/Calculate (a) Suppose the tension is...Ch. 14 - Prob. 16PCECh. 14 - A 4.5-m-long rope of mass 1.8 kg hangs from a...Ch. 14 - Two steel guitar strings have the same length....Ch. 14 - Use dimensional analysis to show how the speed v...Ch. 14 - Prob. 20PCECh. 14 - Write an expression for a transverse harmonic wave...Ch. 14 - The vertical displacement of a wave on a string is...Ch. 14 - As it travels through a crystal, a light wave is...Ch. 14 - Predict/Calculate A wave on a string is described...Ch. 14 - Consider a harmonic wave with the following wave...Ch. 14 - Predict/Calculate Four waves are described by the...Ch. 14 - To determine: The distance of the cliff form the...Ch. 14 - BIO Dolphin Ultrasound Dolphins of the open ocean...Ch. 14 - Prob. 29PCECh. 14 - Prob. 30PCECh. 14 - Predict/Calculate A sound wave in air has a...Ch. 14 - Prob. 32PCECh. 14 - A rock is thrown downward into a well that is 7.62...Ch. 14 - If the distance to a point source of sound is...Ch. 14 - The intensity level of sound in a truck is 88 dB....Ch. 14 - Prob. 36PCECh. 14 - Sound 1 has an intensity of 48.0 W/m2. Sound 2 has...Ch. 14 - Prob. 38PCECh. 14 - Residents of Hawaii are warned of the approach of...Ch. 14 - In a pig-calling contest, a caller produces a...Ch. 14 - Prob. 41PCECh. 14 - BIO The Human Eardrum The radius of a typical...Ch. 14 - Predict/Explain A horn produces sound with...Ch. 14 - You are heading toward an island in your speedboat...Ch. 14 - When the bell in a clock tower rings with a sound...Ch. 14 - A car approaches a train station with a speed of...Ch. 14 - BIO A bat moving with a speed of 3.25 m/s and...Ch. 14 - A motorcycle and a police car are moving toward...Ch. 14 - Hearing the siren of an approaching fire truck,...Ch. 14 - Prob. 50PCECh. 14 - Predict/Calculate Two bicycles approach one...Ch. 14 - A train on one track moves in the same direction...Ch. 14 - Two cars traveling with the same speed move...Ch. 14 - The Bullet Train The Shinkansen, the Japanese...Ch. 14 - Prob. 55PCECh. 14 - Prob. 56PCECh. 14 - A pair of in-phase stereo speakers is placed side...Ch. 14 - Predict/Calculate Two violinists, one directly...Ch. 14 - Two loudspeakers are placed at either end of a...Ch. 14 - Prob. 60PCECh. 14 - Prob. 61PCECh. 14 - Prob. 62PCECh. 14 - An organ pipe that is open at both ends is 3.5 m...Ch. 14 - A string 2.5 m long with a mass of 3.6 g is...Ch. 14 - Prob. 65PCECh. 14 - The fundamental wavelength for standing sound...Ch. 14 - A string is tied down at both ends. Some of the...Ch. 14 - Prob. 68PCECh. 14 - A guitar string 66 cm long vibrates with a...Ch. 14 - Predict/Calculate A guitar string has a mass per...Ch. 14 - Prob. 71PCECh. 14 - The organ pipe in Figure 14-49 is 2.75 m long. (a)...Ch. 14 - The frequency of the standing wave shown in Figure...Ch. 14 - An organ pipe open at both ends has a harmonic...Ch. 14 - When guitar strings A and B are plucked at the...Ch. 14 - Prob. 76PCECh. 14 - You have three tuning forks with frequencies of...Ch. 14 - Tuning a Piano To tune middle C on a piano, a...Ch. 14 - Two musicians are comparing their clarinets. The...Ch. 14 - Predict/Calculate Two strings that are fixed at...Ch. 14 - Identical cellos are being tested. One is...Ch. 14 - A friend in another city tells you that she has...Ch. 14 - Prob. 83GPCh. 14 - The fundamental of an organ pipe that is closed at...Ch. 14 - The Loudest Animal The loudest sound produced by a...Ch. 14 - Hearing a Good Hit Physicist Robert Adair, once...Ch. 14 - Prob. 87GPCh. 14 - Playing Harmonics When a 63-cm-long guitar string...Ch. 14 - BIO Measuring Hearing Loss To determine the amount...Ch. 14 - BIO Hearing a Pin Drop The ability to hear a pin...Ch. 14 - A cannon 105 m away from you shoots a cannonball...Ch. 14 - A machine shop has 120 equally noisy machines that...Ch. 14 - Predict/Calculate A bottle has a standing wave...Ch. 14 - Speed of a Tsunami Tsunamis can have wavelengths...Ch. 14 - Two trains with 124-Hz horns approach one another....Ch. 14 - Predict/Calculate Jim is speeding toward James...Ch. 14 - Two ships in a heavy fog are blowing their horns,...Ch. 14 - BIO Cracking Your Knuckles When you crack a...Ch. 14 - A steel guitar string has a tension F, length L,...Ch. 14 - A Slinky has a mass of 0.28 kg and negligible...Ch. 14 - BIO Predict/Calculate OSHA Noise Standards OSHA,...Ch. 14 - An organ pipe 3.4 m long is open at one end and...Ch. 14 - Two identical strings with the same tension...Ch. 14 - BIO The Love Song of the Midshipman Fish When the...Ch. 14 - Prob. 105GPCh. 14 - Beats and Standing Waves In Problem 59, suppose...Ch. 14 - Prob. 107PPCh. 14 - Prob. 108PPCh. 14 - Prob. 109PPCh. 14 - Prob. 110PPCh. 14 - Prob. 111PPCh. 14 - Referring to Example 14-11 Suppose the train is...Ch. 14 - Prob. 113PPCh. 14 - Prob. 114PP
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
- i need step by step clear answers with the free body diagram clearlyarrow_forwardNo chatgpt pls will upvotearrow_forwardReview the data in Data Table 1 and examine the standard deviations and 95% Margin of Error calculations from Analysis Questions 3 and 4 for the Acceleration of the 1st Based on this information, explain whether Newton’s Second Law of Motion, Equation 1, was verified for your 1st Angle. Equation: SF=ma Please help with explaining the information I collected from a lab and how it relates to the equation and Newton's Second Law. This will help with additional tables in the lab. Thanks!arrow_forward
- No chatgpt pls will upvote instantarrow_forwardKirchoff's Laws. A circuit contains 3 known resistors, 2 known batteries, and 3 unknown currents as shown. Assume the current flows through the circuit as shown (this is our initial guess, the actual currents may be reverse). Use the sign convention that a potential drop is negative and a potential gain is positive. E₂ = 8V R₁₁ = 50 R₂ = 80 b с w 11 www 12 13 E₁ = 6V R3 = 20 a) Apply Kirchoff's Loop Rule around loop abefa in the clockwise direction starting at point a. (2 pt). b) Apply Kirchoff's Loop Rule around loop bcdeb in the clockwise direction starting at point b. (2 pt). c) Apply Kirchoff's Junction Rule at junction b (1 pt). d) Solve the above 3 equations for the unknown currents I1, 12, and 13 and specify the direction of the current around each loop. (5 pts) I1 = A 12 = A 13 = A Direction of current around loop abef Direction of current around loop bcde (CW or CCW) (CW or CCW)arrow_forwardNo chatgpt pls will upvotearrow_forward
- 4.) The diagram shows the electric field lines of a positively charged conducting sphere of radius R and charge Q. A B Points A and B are located on the same field line. A proton is placed at A and released from rest. The magnitude of the work done by the electric field in moving the proton from A to B is 1.7×10-16 J. Point A is at a distance of 5.0×10-2m from the centre of the sphere. Point B is at a distance of 1.0×10-1 m from the centre of the sphere. (a) Explain why the electric potential decreases from A to B. [2] (b) Draw, on the axes, the variation of electric potential V with distance r from the centre of the sphere. R [2] (c(i)) Calculate the electric potential difference between points A and B. [1] (c(ii)) Determine the charge Q of the sphere. [2] (d) The concept of potential is also used in the context of gravitational fields. Suggest why scientists developed a common terminology to describe different types of fields. [1]arrow_forward3.) The graph shows how current I varies with potential difference V across a component X. 904 80- 70- 60- 50- I/MA 40- 30- 20- 10- 0+ 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 VIV Component X and a cell of negligible internal resistance are placed in a circuit. A variable resistor R is connected in series with component X. The ammeter reads 20mA. 4.0V 4.0V Component X and the cell are now placed in a potential divider circuit. (a) Outline why component X is considered non-ohmic. [1] (b(i)) Determine the resistance of the variable resistor. [3] (b(ii)) Calculate the power dissipated in the circuit. [1] (c(i)) State the range of current that the ammeter can measure as the slider S of the potential divider is moved from Q to P. [1] (c(ii)) Describe, by reference to your answer for (c)(i), the advantage of the potential divider arrangement over the arrangement in (b).arrow_forward1.) Two long parallel current-carrying wires P and Q are separated by 0.10 m. The current in wire P is 5.0 A. The magnetic force on a length of 0.50 m of wire P due to the current in wire Q is 2.0 × 10-s N. (a) State and explain the magnitude of the force on a length of 0.50 m of wire Q due to the current in P. [2] (b) Calculate the current in wire Q. [2] (c) Another current-carrying wire R is placed parallel to wires P and Q and halfway between them as shown. wire P wire R wire Q 0.05 m 0.05 m The net magnetic force on wire Q is now zero. (c.i) State the direction of the current in R, relative to the current in P.[1] (c.ii) Deduce the current in R. [2]arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
An Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning