Calculus Volume 2
17th Edition
ISBN: 9781938168062
Author: Gilbert Strang, Edwin Jed Herman
Publisher: OpenStax
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Textbook Question
Chapter 4, Problem 287RE
For the following problems, set up and solve the differential equations.
287. A 1000-liter tank contains pure water and a solution of 0.2 kg salt/L is pumped into the tank at a rate of I L/ min and is drained at the same rate, Solve for total amount of salt in the tank a time g.
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Students have asked these similar questions
Problem 11 (a) A tank is discharging water through an orifice at a depth of T
meter below the surface of the water whose area is A m². The
following are the values of a for the corresponding values of A:
A 1.257 1.390
x 1.50 1.65
1.520 1.650 1.809 1.962 2.123 2.295 2.462|2.650
1.80 1.95 2.10 2.25 2.40 2.55 2.70
2.85
Using the formula
-3.0
(0.018)T =
dx.
calculate T, the time in seconds for the level of the water to drop
from 3.0 m to 1.5 m above the orifice.
(b) The velocity of a train which starts from rest is given by the fol-
lowing table, the time being reckoned in minutes from the start
and the speed in km/hour:
| † (minutes) |2|4 6 8 10 12
14 16 18 20
v (km/hr) 16 28.8 40 46.4 51.2 32.0 17.6 8 3.2 0
Estimate approximately the total distance ran in 20 minutes.
-
Let n = 7, let p = 23 and let S be the set of least positive residues mod p of the first (p − 1)/2
multiple of n, i.e.
n mod p, 2n mod p, ...,
p-1
2
-n mod p.
Let T be the subset of S consisting of those residues which exceed p/2.
Find the set T, and hence compute the Legendre symbol (7|23).
23
32
how come?
The first 11 multiples of 7 reduced mod 23 are
7, 14, 21, 5, 12, 19, 3, 10, 17, 1, 8.
The set T is the subset of these residues exceeding
So T = {12, 14, 17, 19, 21}.
By Gauss' lemma (Apostol Theorem 9.6),
(7|23) = (−1)|T| = (−1)5 = −1.
Let n = 7, let p = 23 and let S be the set of least positive residues mod p of the first (p-1)/2
multiple of n, i.e.
n mod p, 2n mod p, ...,
2
p-1
-n mod p.
Let T be the subset of S consisting of those residues which exceed p/2.
Find the set T, and hence compute the Legendre symbol (7|23).
The first 11 multiples of 7 reduced mod 23 are
7, 14, 21, 5, 12, 19, 3, 10, 17, 1, 8.
23
The set T is the subset of these residues exceeding
2°
So T = {12, 14, 17, 19, 21}.
By Gauss' lemma (Apostol Theorem 9.6),
(7|23) = (−1)|T| = (−1)5 = −1.
how come?
Chapter 4 Solutions
Calculus Volume 2
Ch. 4.1 - Determine the order of the following differential...Ch. 4.1 - Determine the order of the following differential...Ch. 4.1 - Determine the order of the following differential...Ch. 4.1 - Determine the order of the following differential...Ch. 4.1 - Determine the order of the following differential...Ch. 4.1 - Determine the order of the following differential...Ch. 4.1 - Determine the order of the following differential...Ch. 4.1 - Verify that the following functions are solutions...Ch. 4.1 - Verify that the following functions are solutions...Ch. 4.1 - Verify that the following functions are solutions...
Ch. 4.1 - Verify that the following functions are solutions...Ch. 4.1 - Verify that the following functions are solutions...Ch. 4.1 - Verify that the following functions are solutions...Ch. 4.1 - Verify that the following functions are solutions...Ch. 4.1 - Verify that the following functions are solutions...Ch. 4.1 - Verify that the following functions are solutions...Ch. 4.1 - Verify that the following functions are solutions...Ch. 4.1 - Verify the following general solutions and find...Ch. 4.1 - Verify the following general solutions and find...Ch. 4.1 - Verify the following general solutions and find...Ch. 4.1 - Verify the following general solutions and find...Ch. 4.1 - Verify the following general solutions and find...Ch. 4.1 - Verify the following general solutions and find...Ch. 4.1 - Verify the following general solutions and find...Ch. 4.1 - Verify the following general solutions and find...Ch. 4.1 - Verify the following general solutions and find...Ch. 4.1 - Verify the following general solutions and find...Ch. 4.1 - For the following problems, find the general...Ch. 4.1 - For the following problems, find the general...Ch. 4.1 - For the following problems, find the general...Ch. 4.1 - For the following problems, find the general...Ch. 4.1 - For the following problems, find the general...Ch. 4.1 - For the following problems, find the general...Ch. 4.1 - For the following problems, find the general...Ch. 4.1 - For the following problems, find the general...Ch. 4.1 - For the following problems, find the general...Ch. 4.1 - For the following problems, find the general...Ch. 4.1 - Solve the following initial-value problems...Ch. 4.1 - Solve the following initial-value problems...Ch. 4.1 - Solve the following initial-value problems...Ch. 4.1 - Solve the following initial-value problems...Ch. 4.1 - Solve the following initial-value problems...Ch. 4.1 - Solve the following initial-value problems...Ch. 4.1 - Solve the following initial-value problems...Ch. 4.1 - Solve the following initial-value problems...Ch. 4.1 - Solve the following initial-value problems...Ch. 4.1 - Solve the following initial-value problems...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.1 - Recall that a family of solutions includes...Ch. 4.2 - For the following problems, use the direction...Ch. 4.2 - For the following problems, use the direction...Ch. 4.2 - For the following problems, use the direction...Ch. 4.2 - For the following problems, use the direction...Ch. 4.2 - For the following problems, use the direction...Ch. 4.2 - For the following problems, use the direction...Ch. 4.2 - For the following problems, use the direction...Ch. 4.2 - For the following problems, use the direction...Ch. 4.2 - Draw the direction field for the following...Ch. 4.2 - Draw the direction field for the following...Ch. 4.2 - Draw the direction field for the following...Ch. 4.2 - Draw the direction field for the following...Ch. 4.2 - Draw the direction field for the following...Ch. 4.2 - Draw the directional field for the following...Ch. 4.2 - Draw the directional field for the following...Ch. 4.2 - Draw the directional field for the following...Ch. 4.2 - Draw the directional field for the following...Ch. 4.2 - Draw the directional field for the following...Ch. 4.2 - Match the direction field with the given...Ch. 4.2 - Match the direction field with the given...Ch. 4.2 - Match the direction field with the given...Ch. 4.2 - Match the direction field with the given...Ch. 4.2 - Match the direction field with the given...Ch. 4.2 - Match the direction field with the given...Ch. 4.2 - Match the direction field with the given...Ch. 4.2 - Match the direction field with the given...Ch. 4.2 - Match the direction field with the given...Ch. 4.2 - Match the direction field with the given...Ch. 4.2 - Estimate the following solutions using Euler’s...Ch. 4.2 - Estimate the following solutions using Euler’s...Ch. 4.2 - WEstimate the following solutions using Euler’s...Ch. 4.2 - Estimate the following solutions using Euler’s...Ch. 4.2 - Estimate the following solutions using Euler’s...Ch. 4.2 - Estimate the following solutions using Euler’s...Ch. 4.2 - Estimate the following solutions using Euler’s...Ch. 4.2 - Estimate the following solutions using Euler’s...Ch. 4.2 - Estimate the following solutions using Euler’s...Ch. 4.2 - Estimate the following solutions using Euler’s...Ch. 4.2 - Differential equations can be used to model...Ch. 4.2 - Differential equations can be used to model...Ch. 4.2 - Differential equations can be used to model...Ch. 4.2 - Differential equations can be used to model...Ch. 4.2 - Differential equations can be used to model...Ch. 4.2 - Differential equations can be used to model...Ch. 4.2 - Differential equations can be used to model...Ch. 4.2 - Differential equations can be used to model...Ch. 4.2 - Differential equations can be used to model...Ch. 4.2 - Differential equations can be used to model...Ch. 4.2 - Consider the initial-value problem y' = 2y, y(0) =...Ch. 4.2 - Consider the initial-value problem y' = 2y, y(0) =...Ch. 4.2 - Consider the initial-value problem y' = 2y, y(0) =...Ch. 4.2 - Consider the initial-value problem y' = 2y, y(0) =...Ch. 4.2 - Consider the initial-value problem y' = 2y, y(0) =...Ch. 4.3 - Solve the following initial-value problems with...Ch. 4.3 - Solve the following initial-value problems with...Ch. 4.3 - Solve the following initial-value problems with...Ch. 4.3 - Solve the following initial-value problems with...Ch. 4.3 - Find the general solution to the differential...Ch. 4.3 - Find the general solution to the differential...Ch. 4.3 - Find the general solution to the differential...Ch. 4.3 - Find the general solution to the differential...Ch. 4.3 - Find the general solution to the differential...Ch. 4.3 - Find the general solution to the differential...Ch. 4.3 - Find the general solution to the differential...Ch. 4.3 - Find the general solution to the differential...Ch. 4.3 - Find the general solution to the differential...Ch. 4.3 - Find the general solution to the differential...Ch. 4.3 - Find the solution to the initial-value problem....Ch. 4.3 - Find the solution to the initial-value problem....Ch. 4.3 - Find the solution to the initial-value problem....Ch. 4.3 - Find the solution to the initial-value problem....Ch. 4.3 - Find the solution to the initial-value problem....Ch. 4.3 - Find the solution to the initial-value problem....Ch. 4.3 - Find the solution to the initial-value problem....Ch. 4.3 - Find the solution to the initial-value problem....Ch. 4.3 - Find the solution to the initial-value problem....Ch. 4.3 - Find the solution to the initial-value problem....Ch. 4.3 - For the following problems, use a software program...Ch. 4.3 - For the following problems, use a software program...Ch. 4.3 - For the following problems, use a software program...Ch. 4.3 - For the following problems, use a software program...Ch. 4.3 - For the following problems, use a software program...Ch. 4.3 - Most drugs in the bloodstream decay according to...Ch. 4.3 - A drug is administered intravenously to a patient...Ch. 4.3 - [T] How often should a drug be taken if its dose...Ch. 4.3 - A tank contains 1 kilogram of salt dissolved in...Ch. 4.3 - A tank containing 10 kilograms of salt dissolved...Ch. 4.3 - [T] For the preceding problem, find flow much salt...Ch. 4.3 - Torricelli’s law states that for a water tank with...Ch. 4.3 - For the preceding problem, determine how long it...Ch. 4.3 - For the following problems, use Newton’s law of...Ch. 4.3 - For the following problems, use Newton’s law of...Ch. 4.3 - For the following problems, use Newton’s law of...Ch. 4.3 - For the following problems, use Newton’s law of...Ch. 4.3 - For the following problems, use Newton’s law of...Ch. 4.3 - For the following problems, use Newton’s law of...Ch. 4.3 - For the following problems, use Newton’s law of...Ch. 4.3 - For the following problems, use Newton’s law of...Ch. 4.3 - For the following problems, use Newton’s law of...Ch. 4.3 - For the following problems, use Newton’s law of...Ch. 4.3 - For the following problems, use Newton’s law of...Ch. 4.3 - For the following problems, use Newton’s law of...Ch. 4.4 - Student Project: Logistic Equation with a...Ch. 4.4 - Student Project: Logistic Equation with a...Ch. 4.4 - Student Project: Logistic Equation with a...Ch. 4.4 - Student Project: Logistic Equation with a...Ch. 4.4 - For the following problems, consider the logistic...Ch. 4.4 - For the following problems, consider the logistic...Ch. 4.4 - For the following problems, consider the logistic...Ch. 4.4 - For the following problems, consider the logistic...Ch. 4.4 - For the following problems, consider the logistic...Ch. 4.4 - A population of deer inside a park has a carrying...Ch. 4.4 - A population of frogs in a pond has a growth rate...Ch. 4.4 - [T] Bacteria grow at a rate of 2O per hour in a...Ch. 4.4 - [T] Rabbits in a park have an initial population...Ch. 4.4 - [T] Two monkeys are placed on an island. After 5...Ch. 4.4 - [T] A butterfly sanctuary is built that can hold...Ch. 4.4 - The following problems consider the logistic...Ch. 4.4 - The following problems consider the logistic...Ch. 4.4 - The following problems consider the logistic...Ch. 4.4 - The following problems consider the logistic...Ch. 4.4 - The following problems consider the logistic...Ch. 4.4 - It is more likely that the amount of fishing is...Ch. 4.4 - It is more likely that the amount of fishing is...Ch. 4.4 - It is more likely that the amount of fishing is...Ch. 4.4 - It is more likely that the amount of fishing is...Ch. 4.4 - It is more likely that the amount of fishing is...Ch. 4.4 - The following problems add in a minimal threshold...Ch. 4.4 - The following problems add in a minimal threshold...Ch. 4.4 - The following problems add in a minimal threshold...Ch. 4.4 - The following problems add in a minimal threshold...Ch. 4.4 - The following problems add in a minimal threshold...Ch. 4.4 - The following questions consider the Gompertz...Ch. 4.4 - The following questions consider the Gompertz...Ch. 4.4 - The following questions consider the Gompertz...Ch. 4.4 - The following questions consider the Gompertz...Ch. 4.4 - The following questions consider the Gompertz...Ch. 4.4 - The following questions consider the Gompertz...Ch. 4.4 - The following questions consider the Gompertz...Ch. 4.4 - The following questions consider the Gompertz...Ch. 4.4 - The following questions consider the Gompertz...Ch. 4.4 - Below is a table of the populations of whooping...Ch. 4.4 - Below is a table of the populations of whooping...Ch. 4.4 - Below is a table of the populations of whooping...Ch. 4.4 - Below is a table of the populations of whooping...Ch. 4.4 - Below is a table of the populations of whooping...Ch. 4.5 - Are the following differential equations linear?...Ch. 4.5 - Are the following differential equations linear?...Ch. 4.5 - Are the following differential equations linear?...Ch. 4.5 - Are the following differential equations linear?...Ch. 4.5 - Are the following differential equations linear?...Ch. 4.5 - Write the following first-order differential...Ch. 4.5 - Write the following first-order differential...Ch. 4.5 - Write the following first-order differential...Ch. 4.5 - Write the following first-order differential...Ch. 4.5 - Write the following first-order differential...Ch. 4.5 - What are the integrating factors for the following...Ch. 4.5 - What are the integrating factors for the following...Ch. 4.5 - What are the integrating factors for the following...Ch. 4.5 - What are the integrating factors for the following...Ch. 4.5 - What are the integrating factors for the following...Ch. 4.5 - Solve the following differential equations by...Ch. 4.5 - Solve the following differential equations by...Ch. 4.5 - Solve the following differential equations by...Ch. 4.5 - Solve the following differential equations by...Ch. 4.5 - Solve the following differential equations by...Ch. 4.5 - Solve the following differential equations by...Ch. 4.5 - Solve the following differential equations by...Ch. 4.5 - Solve the following differential equations by...Ch. 4.5 - Solve the following differential equations by...Ch. 4.5 - Solve the following differential equations by...Ch. 4.5 - Solve the following differential equations. Use...Ch. 4.5 - Solve the following differential equations. Use...Ch. 4.5 - Solve the following differential equations. Use...Ch. 4.5 - Solve the following differential equations. Use...Ch. 4.5 - Solve the following differential equations. Use...Ch. 4.5 - Solve the following differential equations. Use...Ch. 4.5 - Solve the following differential equations. Use...Ch. 4.5 - Solve the following differential equations. Use...Ch. 4.5 - Solve the following initial-value problems by...Ch. 4.5 - Solve the following initial-value problems by...Ch. 4.5 - Solve the following initial-value problems by...Ch. 4.5 - Solve the following initial-value problems by...Ch. 4.5 - Solve the following initial-value problems by...Ch. 4.5 - Solve the following initial-value problems by...Ch. 4.5 - Solve the following initial-value problems by...Ch. 4.5 - Solve the following initial-value problems by...Ch. 4.5 - Solve the following initial-value problems by...Ch. 4.5 - Solve the following initial-value problems by...Ch. 4.5 - A falling object of mass m can reach terminal...Ch. 4.5 - Using your expression from the preceding problem,...Ch. 4.5 - [T] Using your equation for terminal velocity,...Ch. 4.5 - A more accurate way to describe terminal velocity...Ch. 4.5 - Using your expression from the preceding problem,...Ch. 4.5 - [T] Using your equation for terminal velocity,...Ch. 4.5 - For the following problems, determine how...Ch. 4.5 - For the following problems, determine how...Ch. 4.5 - For the following problems, determine how...Ch. 4.5 - For the following problems, determine how...Ch. 4.5 - For the following problems, determine how...Ch. 4 - True or False? Justify your answer with a proof or...Ch. 4 - True or False? Justify your answer with a proof or...Ch. 4 - True or False? Justify your answer with a proof or...Ch. 4 - True or False? Justify your answer with a proof or...Ch. 4 - For the following problems, find the general...Ch. 4 - For the following problems, find the general...Ch. 4 - For the following problems, find the general...Ch. 4 - For the following problems, find the general...Ch. 4 - For the following problems, find the general...Ch. 4 - For the following problems, find the general...Ch. 4 - For the following problems, find the solution to...Ch. 4 - For the following problems, find the solution to...Ch. 4 - For the following problems, find the solution to...Ch. 4 - For the following problems, find the solution to...Ch. 4 - For the following problems, find the solution to...Ch. 4 - For the following problems, find the solution to...Ch. 4 - For the following problems, draw the directional...Ch. 4 - For the following problems, draw the directional...Ch. 4 - For the following problems, use Euler’s Method...Ch. 4 - For the following problems, use Euler’s Method...Ch. 4 - For the following problems, set up and solve the...Ch. 4 - For the following problems, set up and solve the...Ch. 4 - For the following problems, set up and solve the...Ch. 4 - For the following problems, set up and solve the...Ch. 4 - For the following problems, set up and solve the...Ch. 4 - For the following problems, set up and solve the...Ch. 4 - For the following problems, set up and solve the...Ch. 4 - For the following problems, set up and solve the...Ch. 4 - For the following problems, set up and solve the...
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