To determine To show: The equality ∂ u ∂ t = k ∂ 2 u ∂ x 2 with k = 1 16 holds. Explanation It is given that the temperature u on a metal is u ( x , t ) = 5 e − t sin 4 x , x is the distance from one end and t is the time. The one dimensional heat conduction equation demands second order derivatives with respect to x . Differentiate u ( x , t ) = 5 e − t sin 4 x partially with respect to x as follows. ∂ y ∂ x = ∂ ∂ x ( 5 e − t sin 4 x ) = 5 e − t ∂ ∂ x ( sin 4 x ) = 5 e − t ( cos 4 x ) ∂ ∂ x ( 4 x ) use chain rule = 5 e − t cos 4 x ( 4 ) That is, ∂ y ∂ x = 20 e − t cos 4 x . Differentiate ∂ y ∂ x = 20 e − t cos 4 x partially with respect to x again as follows. ∂ 2 y ∂ x 2 = ∂ ∂ x ( 20 e − t cos 4 x ) = 20 e − t ∂ ∂ x ( cos 4 x ) = 20 e − t ( − sin 4 x ) ∂ ∂ x ( 4 x ) use chain rule = − 20 e − t sin 4 x ( 4 ) That is, ∂ 2 y ∂ x 2 = − 80 e − t sin 4 x

11th Edition

ISBN: 9780134437705

Author: Washington

Publisher: PEARSON

See similar textbooks

Concept explainers

Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differentia…

Videos

Question

Chapter 29.3, Problem 49E

To determine

To show: The equality ∂u∂t=k∂2u∂x2 with k=116 holds.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 29.3, Problem 48E

Chapter 29.3, Problem 50E

Students have asked these similar questions

A recent survey of 400 americans asked whether or not parents do too much for their young adult children. The results of the survey are shown in the data file. a) Construct the frequency and relative frequency distributions. How many respondents felt that parents do too much for their adult children? What proportion of respondents felt that parents do too little for their adult children? b) Construct a pie chart. Summarize the findings

55 Logic and Set Theory: Continuum Hypothesis Task: Refer to Question 55 in the provided document. Link: https://drive.google.com/file/d/1wKSrun-GlxirS3IZ9qoHazb9tC440AZF/view?usp=sharing 5 6 Differential Geometry: Ricci Curvature Task: Refer to Question 56 in the provided document. Link: https://drive.google.com/file/d/1wKSrun-GlxirS31Z9qoHazb9tC440AZF/view?usp=sharing

3. Verify that the indicated function (or family of functions) is a solution of the given differential equation. Assume an appropriate interval I of definition for each solution.

Chapter 29 Solutions

Basic Technical Mathematics

Ch. 29.1 - Practice Exercise If f(x, y) = 4xy2 – 3x2y, find...Ch. 29.1 - Prob. 1E Ch. 29.1 - Prob. 2E Ch. 29.1 - Prob. 3E Ch. 29.1 - Prob. 4E Ch. 29.1 - Prob. 5E Ch. 29.1 - Prob. 6E Ch. 29.1 - Prob. 7E Ch. 29.1 - Prob. 8E Ch. 29.1 - Prob. 9E

Ch. 29.1 - Prob. 10E Ch. 29.1 - Prob. 11E Ch. 29.1 - Prob. 12E Ch. 29.1 - Prob. 13E Ch. 29.1 - Prob. 14E Ch. 29.1 - Prob. 15E Ch. 29.1 - Prob. 16E Ch. 29.1 - Prob. 17E Ch. 29.1 - Prob. 18E Ch. 29.1 - Prob. 19E Ch. 29.1 - Prob. 20E Ch. 29.1 - Prob. 21E Ch. 29.1 - Prob. 22E Ch. 29.1 - Prob. 23E Ch. 29.1 - Prob. 24E Ch. 29.1 - Prob. 25E Ch. 29.1 - Prob. 26E Ch. 29.1 - Prob. 27E Ch. 29.1 - Prob. 28E Ch. 29.1 - Prob. 29E Ch. 29.1 - Prob. 30E Ch. 29.1 - Prob. 31E Ch. 29.1 - Prob. 32E Ch. 29.1 - Prob. 33E Ch. 29.1 - Prob. 34E Ch. 29.1 - Prob. 35E Ch. 29.1 - Prob. 36E Ch. 29.1 - Prob. 37E Ch. 29.1 - Prob. 38E Ch. 29.1 - Prob. 39E Ch. 29.1 - Prob. 40E Ch. 29.1 - Prob. 41E Ch. 29.1 - Prob. 42E Ch. 29.1 - Prob. 43E Ch. 29.1 - Prob. 44E Ch. 29.2 - Prob. 1PE Ch. 29.2 - Prob. 2PE Ch. 29.2 - Prob. 1E Ch. 29.2 - Prob. 2E Ch. 29.2 - Prob. 3E Ch. 29.2 - Prob. 4E Ch. 29.2 - Prob. 5E Ch. 29.2 - Prob. 6E Ch. 29.2 - Prob. 7E Ch. 29.2 - Prob. 8E Ch. 29.2 - Prob. 9E Ch. 29.2 - Prob. 10E Ch. 29.2 - Prob. 11E Ch. 29.2 - Prob. 12E Ch. 29.2 - Prob. 13E Ch. 29.2 - Prob. 14E Ch. 29.2 - Prob. 15E Ch. 29.2 - Prob. 16E Ch. 29.2 - Prob. 17E Ch. 29.2 - Prob. 18E Ch. 29.2 - Prob. 19E Ch. 29.2 - Prob. 20E Ch. 29.2 - Prob. 21E Ch. 29.2 - Prob. 22E Ch. 29.2 - Prob. 23E Ch. 29.2 - Prob. 24E Ch. 29.2 - Prob. 25E Ch. 29.2 - Prob. 26E Ch. 29.2 - Prob. 27E Ch. 29.2 - Prob. 28E Ch. 29.2 - Prob. 29E Ch. 29.2 - Prob. 30E Ch. 29.2 - Prob. 31E Ch. 29.2 - Prob. 32E Ch. 29.2 - Prob. 33E Ch. 29.2 - Prob. 34E Ch. 29.2 - Prob. 35E Ch. 29.2 - Prob. 36E Ch. 29.2 - Prob. 37E Ch. 29.2 - Prob. 38E Ch. 29.2 - Prob. 39E Ch. 29.2 - Prob. 40E Ch. 29.2 - Prob. 41E Ch. 29.2 - Prob. 42E Ch. 29.2 - Prob. 43E Ch. 29.2 - Prob. 44E Ch. 29.2 - Prob. 45E Ch. 29.2 - Prob. 46E Ch. 29.3 - If z = 4x2 + x sin y, find ∂z/∂x and ∂z/∂y. Ch. 29.3 - Prob. 2PE Ch. 29.3 - Prob. 1E Ch. 29.3 - Prob. 2E Ch. 29.3 - Prob. 3E Ch. 29.3 - Prob. 4E Ch. 29.3 - Prob. 5E Ch. 29.3 - Prob. 6E Ch. 29.3 - Prob. 7E Ch. 29.3 - Prob. 8E Ch. 29.3 - Prob. 9E Ch. 29.3 - Prob. 10E Ch. 29.3 - Prob. 11E Ch. 29.3 - Prob. 12E Ch. 29.3 - Prob. 13E Ch. 29.3 - Prob. 14E Ch. 29.3 - Prob. 15E Ch. 29.3 - Prob. 16E Ch. 29.3 - Prob. 17E Ch. 29.3 - Prob. 18E Ch. 29.3 - Prob. 19E Ch. 29.3 - Prob. 20E Ch. 29.3 - Prob. 21E Ch. 29.3 - Prob. 22E Ch. 29.3 - Prob. 23E Ch. 29.3 - Prob. 24E Ch. 29.3 - Prob. 25E Ch. 29.3 - Prob. 26E Ch. 29.3 - Prob. 27E Ch. 29.3 - Prob. 28E Ch. 29.3 - Prob. 29E Ch. 29.3 - Prob. 30E Ch. 29.3 - Prob. 31E Ch. 29.3 - Prob. 32E Ch. 29.3 - Prob. 33E Ch. 29.3 - Prob. 34E Ch. 29.3 - Prob. 35E Ch. 29.3 - Prob. 36E Ch. 29.3 - In Exercises 35–50, solve the given...Ch. 29.3 - In Exercises 35–50, solve the given...Ch. 29.3 - Prob. 39E Ch. 29.3 - Prob. 40E Ch. 29.3 - In Exercises 35–50, solve the given...Ch. 29.3 - Prob. 42E Ch. 29.3 - Prob. 43E Ch. 29.3 - Prob. 44E Ch. 29.3 - Prob. 45E Ch. 29.3 - Prob. 46E Ch. 29.3 - Prob. 47E Ch. 29.3 - Prob. 48E Ch. 29.3 - In Exercises 35–50, solve the given...Ch. 29.3 - In Exercises 35–50, solve the given...Ch. 29.4 - Prob. 1PE Ch. 29.4 - Prob. 1E Ch. 29.4 - Prob. 2E Ch. 29.4 - Prob. 3E Ch. 29.4 - Prob. 4E Ch. 29.4 - Prob. 5E Ch. 29.4 - In Exercises 5–18, evaluate the given double...Ch. 29.4 - Prob. 7E Ch. 29.4 - Prob. 8E Ch. 29.4 - Prob. 9E Ch. 29.4 - Prob. 10E Ch. 29.4 - Prob. 11E Ch. 29.4 - Prob. 12E Ch. 29.4 - Prob. 13E Ch. 29.4 - Prob. 14E Ch. 29.4 - Prob. 15E Ch. 29.4 - Prob. 16E Ch. 29.4 - Prob. 17E Ch. 29.4 - Prob. 18E Ch. 29.4 - Prob. 19E Ch. 29.4 - Prob. 20E Ch. 29.4 - Prob. 21E Ch. 29.4 - Prob. 22E Ch. 29.4 - Prob. 23E Ch. 29.4 - Prob. 24E Ch. 29.4 - Prob. 25E Ch. 29.4 - Prob. 26E Ch. 29.4 - Prob. 27E Ch. 29.4 - Prob. 28E Ch. 29.4 - Prob. 29E Ch. 29.4 - Prob. 30E Ch. 29.4 - Prob. 31E Ch. 29.4 - Prob. 32E Ch. 29.4 - Prob. 33E Ch. 29.4 - Prob. 34E Ch. 29 - Prob. 1RE Ch. 29 - Prob. 2RE Ch. 29 - Prob. 3RE Ch. 29 - Prob. 4RE Ch. 29 - Prob. 5RE Ch. 29 - Prob. 6RE Ch. 29 - Prob. 7RE Ch. 29 - Prob. 8RE Ch. 29 - Prob. 9RE Ch. 29 - Prob. 10RE Ch. 29 - Prob. 11RE Ch. 29 - Prob. 12RE Ch. 29 - Prob. 13RE Ch. 29 - Prob. 14RE Ch. 29 - Prob. 15RE Ch. 29 - Prob. 16RE Ch. 29 - Prob. 17RE Ch. 29 - Prob. 18RE Ch. 29 - Prob. 19RE Ch. 29 - Prob. 20RE Ch. 29 - Prob. 21RE Ch. 29 - Prob. 22RE Ch. 29 - Prob. 23RE Ch. 29 - Prob. 24RE Ch. 29 - Prob. 25RE Ch. 29 - Prob. 26RE Ch. 29 - Prob. 27RE Ch. 29 - Prob. 28RE Ch. 29 - Prob. 29RE Ch. 29 - Prob. 30RE Ch. 29 - Prob. 31RE Ch. 29 - Prob. 32RE Ch. 29 - Prob. 33RE Ch. 29 - Prob. 34RE Ch. 29 - Prob. 35RE Ch. 29 - Prob. 36RE Ch. 29 - Prob. 37RE Ch. 29 - Prob. 38RE Ch. 29 - Prob. 39RE Ch. 29 - Prob. 40RE Ch. 29 - Prob. 41RE Ch. 29 - Prob. 42RE Ch. 29 - Prob. 43RE Ch. 29 - Prob. 44RE Ch. 29 - Prob. 45RE Ch. 29 - Prob. 46RE Ch. 29 - Prob. 47RE Ch. 29 - Prob. 48RE Ch. 29 - Prob. 49RE Ch. 29 - Prob. 50RE Ch. 29 - Prob. 51RE Ch. 29 - Prob. 52RE Ch. 29 - Prob. 53RE Ch. 29 - Prob. 54RE Ch. 29 - Prob. 55RE Ch. 29 - Prob. 1PT Ch. 29 - Prob. 2PT Ch. 29 - Prob. 3PT Ch. 29 - Prob. 4PT Ch. 29 - Prob. 5PT Ch. 29 - Prob. 6PT Ch. 29 - Prob. 7PT Ch. 29 - Prob. 8PT

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.