CALCULUS WITH APPLICATIONS
11th Edition
ISBN: 2818440028625
Author: Lial
Publisher: ELSEVIER
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Chapter 10, Problem 48RE
To determine
To find: All the equilibrium points of the given differential equation and determine their stability.
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2. A tank with a capacity of 650 gal. originally contains 200 gal of water with 100 lb. of salt in
solution. Water containing 1 lb. of salt per gallon is entering at a rate of 4 gal/min, and the
mixture is allowed to flow out of the tank at a rate of 3 gal/min.
a. Find the amount of salt in the tank at any time prior to the instant when the tank
begins to overflow (650 gallons).
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D.E. for mixture problems:
dv
dt=11-12
dA
A(t)
dt
- Suppose that you have the differential equation:
dy
= (y - 2) (y+3)
dx
a. What are the equilibrium solutions for the differential equation?
b. Where is the differential equation increasing or decreasing? Show how you know.
Showing them on the drawing is not enough.
c. Where are the changes in concavity for the differential equation? Show how you
know. Showing them on the drawing is not enough.
d. Consider the slope field for the differential equation. Draw solution curves given the
following initial conditions:
i. y(0) = -5
ii. y(0) = -1
iii. y(0) = 2
5. Suppose that a mass of 5 stretches a spring 10. The mass is acted on by an external force
of F(t)=10 sin () and moves in a medium that gives a damping coefficient of ½. If the mass
is set in motion with an initial velocity of 3 and is stretched initially to a length of 5. (I
purposefully removed the units- don't worry about them. Assume no conversions are
needed.)
a) Find the equation for the displacement of the spring mass at time t.
b) Write the equation for the displacement of the spring mass in phase-mode form.
c) Characterize the damping of the spring mass system as overdamped, underdamped or
critically damped. Explain how you know.
D.E. for Spring Mass Systems
k
m* g = kLo
y" +—y' + — —±y = —±F(t), y(0) = yo, y'(0) = vo
m
2
A₁ = √c₁² + C₂²
Q = tan-1
Chapter 10 Solutions
CALCULUS WITH APPLICATIONS
Ch. 10.1 - Find all solutions of the differential equation .
Ch. 10.1 - Prob. 2YTCh. 10.1 - Prob. 3YTCh. 10.1 - Prob. 4YTCh. 10.1 - Prob. 1WECh. 10.1 - Prob. 2WECh. 10.1 - Prob. 3WECh. 10.1 - Prob. 4WECh. 10.1 - Prob. 5WECh. 10.1 - Find the general solution for each differential...
Ch. 10.1 - Find the general solution for each differential...Ch. 10.1 - Find the general solution for each differential...Ch. 10.1 - Prob. 4ECh. 10.1 - Find the general solution for each differential...Ch. 10.1 - Find the general solution for each differential...Ch. 10.1 - Find the general solution for each differential...Ch. 10.1 - Find the general solution for each differential...Ch. 10.1 - Find the general solution for each differential...Ch. 10.1 - Find the general solution for each differential...Ch. 10.1 - Find the general solution for each differential...Ch. 10.1 - Find the general solution for each differential...Ch. 10.1 - Find the general solution for each differential...Ch. 10.1 - Prob. 14ECh. 10.1 - Find the general solution for each differential...Ch. 10.1 - Find the general solution for each differential...Ch. 10.1 - Prob. 17ECh. 10.1 - Find the particular solution for each initial...Ch. 10.1 - Find the particular solution for each initial...Ch. 10.1 - Find the particular solution for each initial...Ch. 10.1 - Find the particular solution for each initial...Ch. 10.1 - Find the particular solution for each initial...Ch. 10.1 - Find the particular solution for each initial...Ch. 10.1 - Find the particular solution for each initial...Ch. 10.1 - Find the particular solution for each initial...Ch. 10.1 - Find the particular solution for each initial...Ch. 10.1 - Find the particular solution for each initial...Ch. 10.1 - Find the particular solution for each initial...Ch. 10.1 - Find the particular solution for each initial...Ch. 10.1 - Find the particular solution for each initial...Ch. 10.1 - Find all equilibrium points and determine their...Ch. 10.1 - Find all equilibrium points and determine their...Ch. 10.1 - Find all equilibrium points and determine their...Ch. 10.1 - Find all equilibrium points and determine their...Ch. 10.1 - (4)
Solve the logistic Equation (4) in this...Ch. 10.1 -
Suppose that 0 < z < 1 for all z. Solve the...Ch. 10.1 - Suppose that 0 < y0 < N. Let b = (N − y0)/y0, and...Ch. 10.1 - Suppose that 0 < N < y0. Let b = (y0 − N)/y0 and...Ch. 10.1 - Prob. 39ECh. 10.1 - Sales Decline Sales (in thousands) of a certain...Ch. 10.1 - Inflation If inflation grows continuously at a...Ch. 10.1 - Elasticity of Demand Elasticity of demand was...Ch. 10.1 - Prob. 43ECh. 10.1 - Internet Usage During the early days of the...Ch. 10.1 - Life Insurance A life insurance company invests...Ch. 10.1 - Prob. 46ECh. 10.1 - Soil Moisture The evapotranspiration index I is a...Ch. 10.1 - Prob. 48ECh. 10.1 - Dieting A person’s weight depends both on the...Ch. 10.1 - Prob. 50ECh. 10.1 - H1N1 Virus The cumulative number of deaths...Ch. 10.1 - Prob. 52ECh. 10.1 - Prob. 53ECh. 10.1 - Prob. 54ECh. 10.1 - Prob. 55ECh. 10.1 - Prob. 56ECh. 10.1 - Worker Productivity A company has found that the...Ch. 10.1 - Prob. 58ECh. 10.1 - Prob. 59ECh. 10.1 - Prob. 60ECh. 10.1 - Prob. 61ECh. 10.1 - Prob. 62ECh. 10.1 - Prob. 63ECh. 10.1 - Prob. 64ECh. 10.2 - Give the general solution of
Ch. 10.2 - Prob. 2YTCh. 10.2 - Prob. 1WECh. 10.2 - Prob. 2WECh. 10.2 - Prob. 3WECh. 10.2 - Prob. 4WECh. 10.2 - Find the general solution for each differential...Ch. 10.2 - Find the general solution for each differential...Ch. 10.2 - Find the general solution for each differential...Ch. 10.2 - Find the general solution for each differential...Ch. 10.2 - Find the general solution for each differential...Ch. 10.2 - Find the general solution for each differential...Ch. 10.2 - Find the general solution for each differential...Ch. 10.2 - Find the general solution for each differential...Ch. 10.2 - Find the general solution for each differential...Ch. 10.2 - Find the general solution for each differential...Ch. 10.2 - Find the general solution for each differential...Ch. 10.2 - Find the general solution for each differential...Ch. 10.2 - Solve each differential equation, subject to the...Ch. 10.2 - Solve each differential equation, subject to the...Ch. 10.2 - Solve each differential equation, subject to the...Ch. 10.2 - Prob. 16ECh. 10.2 - Solve each differential equation, subject to the...Ch. 10.2 - Prob. 18ECh. 10.2 - Solve each differential equation, subject to the...Ch. 10.2 - Solve each differential equation, subject to the...Ch. 10.2 - Investment Carrie Mattaini is investing $2000...Ch. 10.2 - Prob. 22ECh. 10.2 - Prob. 23ECh. 10.2 - Prob. 24ECh. 10.2 - Drug Use The rate of change in the concentration...Ch. 10.2 - Prob. 26ECh. 10.2 - Excitable Cells The Hodgkin-Huxley model for...Ch. 10.2 - Social Sciences
Immigration and Emigration If...Ch. 10.2 - Social Sciences
Immigration and Emigration If...Ch. 10.2 - Social Sciences
Immigration and Emigration If...Ch. 10.2 - Social Sciences
Immigration and Emigration If...Ch. 10.2 - Prob. 32ECh. 10.3 - Use Euler’s method to approximate the solution of...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Prob. 10ECh. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Use Euler’s method to approximate the indicated...Ch. 10.3 - Prob. 19ECh. 10.3 - Prob. 20ECh. 10.3 - Prob. 21ECh. 10.3 - Prob. 22ECh. 10.3 - Prob. 23ECh. 10.3 - Prob. 24ECh. 10.3 - Prob. 25ECh. 10.3 - Prob. 26ECh. 10.3 - Prob. 27ECh. 10.3 - Prob. 28ECh. 10.3 - Use Euler’s method with h = 0.2 to approximate...Ch. 10.3 - Bankruptcy Suppose 125 small business firms are...Ch. 10.3 - Growth of Algae The phosphate compounds found in...Ch. 10.3 - Immigration An island is colonized by immigration...Ch. 10.3 - Insect Population A population of insects, y,...Ch. 10.3 - Prob. 34ECh. 10.3 - Prob. 35ECh. 10.3 - Prob. 36ECh. 10.3 - Prob. 37ECh. 10.4 - Modify Example 1 so that the initial amount is...Ch. 10.4 - Letting p = 4, q = 1, r = 3, and s = 5 in Example...Ch. 10.4 - Suppose that an epidemic in a community of 50,000...Ch. 10.4 - Suppose that a tank initially contains 500 liters...Ch. 10.4 - Find the particular solution for each inital value...Ch. 10.4 - Find the particular solution for each inital value...Ch. 10.4 - Find the particular solution for each inital value...Ch. 10.4 - Find the particular solution for each inital value...Ch. 10.4 - Business and Economics
Continuous Deposits...Ch. 10.4 - Continuous Deposits In Exercise 1, how long will...Ch. 10.4 - Continuous Deposits To provide for a future...Ch. 10.4 - Continuous Deposits Suppose the company in...Ch. 10.4 - Continuous Deposits An investor deposits $8000...Ch. 10.4 - Predator-Prey Explain in your own words why the...Ch. 10.4 - Competing Species The system of...Ch. 10.4 - Symbiotic Species When two species, such as the...Ch. 10.4 - Spread of an Epidemic The native Hawaiians lived...Ch. 10.4 - Spread of an Epidemic In Example 3, the number of...Ch. 10.4 - Spread of an Epidemic An influenza epidemic...Ch. 10.4 - Spread of an Epidemic The Gompertz growth...Ch. 10.4 - Spread of Gonorrhea Gonorrhea is spread by sexual...Ch. 10.4 - Suppose a rumor starts among 3 people in a certain...Ch. 10.4 - A rumor spreads at a rate proportional to the...Ch. 10.4 - A news item is heard on the late news by 5 of the...Ch. 10.4 - Repeat Exercise 15 using the Gompertz growth...Ch. 10.4 - Salt Concentration A tank holds 100 gal of water...Ch. 10.4 - Solve Exercise 18 if the brine solution is...Ch. 10.4 - Solve Exercise 18 if the brine solution is...Ch. 10.4 - Solve Exercise 18 if pure water is added instead...Ch. 10.4 - Chemical in a Solution Five grams of a chemical is...Ch. 10.4 - Solve Exercise 22 if a 25% solution of the same...Ch. 10.4 - Prob. 24ECh. 10 - Prob. 1RECh. 10 - Prob. 2RECh. 10 - Prob. 3RECh. 10 - Prob. 4RECh. 10 - Prob. 5RECh. 10 - Prob. 6RECh. 10 - Prob. 7RECh. 10 - Prob. 8RECh. 10 - Prob. 9RECh. 10 - Prob. 10RECh. 10 - Prob. 11RECh. 10 - Prob. 12RECh. 10 - Prob. 13RECh. 10 - Prob. 14RECh. 10 - Prob. 15RECh. 10 - Prob. 16RECh. 10 - Prob. 17RECh. 10 - Prob. 18RECh. 10 - Prob. 19RECh. 10 - Prob. 20RECh. 10 - Prob. 21RECh. 10 - Prob. 22RECh. 10 - Prob. 23RECh. 10 - Prob. 24RECh. 10 - Prob. 25RECh. 10 - Prob. 26RECh. 10 - Prob. 27RECh. 10 - Prob. 28RECh. 10 - Prob. 29RECh. 10 - Prob. 30RECh. 10 - Prob. 31RECh. 10 - Prob. 32RECh. 10 - Prob. 33RECh. 10 - Prob. 34RECh. 10 - Prob. 35RECh. 10 - Prob. 36RECh. 10 - Prob. 37RECh. 10 - Prob. 38RECh. 10 - Prob. 39RECh. 10 - Prob. 40RECh. 10 - Prob. 41RECh. 10 - Prob. 42RECh. 10 - Prob. 43RECh. 10 - Prob. 44RECh. 10 - Prob. 45RECh. 10 - Prob. 46RECh. 10 - Prob. 47RECh. 10 - Prob. 48RECh. 10 - Prob. 49RECh. 10 - Prob. 50RECh. 10 - Prob. 51RECh. 10 - Prob. 52RECh. 10 - Prob. 53RECh. 10 - Prob. 54RECh. 10 - Prob. 55RECh. 10 - Prob. 56RECh. 10 - Prob. 57RECh. 10 - Prob. 58RECh. 10 - Prob. 59RECh. 10 - Prob. 60RECh. 10 - Prob. 61RECh. 10 - Prob. 62RECh. 10 - Prob. 63RECh. 10 - Prob. 64RECh. 10 - Prob. 65RECh. 10 - Prob. 66RECh. 10 - Prob. 67RECh. 10 - Prob. 68RECh. 10 - Prob. 69RECh. 10 - Prob. 70RECh. 10 - Prob. 71RECh. 10 - Prob. 72RECh. 10 - Prob. 73RECh. 10 - Prob. 74RE
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