CODE/CALC ET 3-HOLE
2nd Edition
ISBN: 9781323178522
Author: Briggs
Publisher: PEARSON
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Chapter D1.1, Problem 1E
To determine
To find: The order of
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Data environment IBL
The company Internet Big Library (abbr. IBL) was established in the year 2000. The most
important tables of the IBL information system are as follows.
Books (bid, author, title, publisher, year, notes);
Members (mid, name, surname, street, city, country, birthday, phone, notes);
Borrow (rid, bid, mid, date, notes);
TASK 1: Suppliers
Using domain and tuple relational calculus, find:
1. Find the sids of suppliers who supply some red or green part.
2. Find the sids of suppliers who supply some red part or are at „Koprska cesta 25".
3. Find the sids of suppliers who supply every part.
4. Find the sids of suppliers who supply every red part.
5. Find the sids of suppliers who supply every red or green part.
6. Find the pids of parts supplied by at least two different suppliers.
Relation
Relational schema
Suppliers
SUPPLIERS(sid, sname, address)
Parts
PARTS(pid, pname, color)
Catalog
CATALOG(#sid, #pid, cost)
TASK 2: Airline flight information
Using domain and tuple relational calculus, find:
1. Find the eids of pilots certified for some Boeing aircraft.
2. Find the names of pilots certified for some Boeing aircraft.
3. Find the aids of all aircraft that can be used on non-stop flights from Paris to Vancouver.
4. Find the names of pilots who can operate planes with a range greater than 3,000 miles but are not certified
on any Boeing aircraft.
5. Find the eids of employees who make the highest salary (multiple employees can have highest salary).
Relation
Flights
Aircraft
Certified
Relational schema
FLIGHTS(flno, from, to, distance, departs, arrives)
AIRCRAFT (aid, aname, cruisingrange)
CERTIFIED (#eid, #aid)
Employees
EMPLOYEES(eid, ename, salary)
Chapter D1 Solutions
CODE/CALC ET 3-HOLE
Ch. D1.1 - Prob. 1ECh. D1.1 - Prob. 2ECh. D1.1 - Prob. 3ECh. D1.1 - If the general solution of a differential equation...Ch. D1.1 - Does the function y(t) = 2t satisfy the...Ch. D1.1 - Does the function y(t) = 6e3t satisfy the initial...Ch. D1.1 - Verifying general solutions Verify that the given...Ch. D1.1 - Verifying general solutions Verify that the given...Ch. D1.1 - Verifying general solutions Verify that the given...Ch. D1.1 - Verifying general solutions Verify that the given...
Ch. D1.1 - Verifying solutions of initial value problems...Ch. D1.1 - Verifying solutions of initial value problems...Ch. D1.1 - Verifying solutions of initial value problems...Ch. D1.1 - Verifying solutions of initial value problems...Ch. D1.1 - Finding general solutions Find the general...Ch. D1.1 - Finding general solutions Find the general...Ch. D1.1 - Finding general solutions Find the general...Ch. D1.1 - Finding general solutions Find the general...Ch. D1.1 - Finding general solutions Find the general...Ch. D1.1 - Finding general solutions Find the general...Ch. D1.1 - Finding general solutions Find the general...Ch. D1.1 - Prob. 22ECh. D1.1 - Solving initial value problems Solve the following...Ch. D1.1 - Solving initial value problems Solve the following...Ch. D1.1 - Solving initial value problems Solve the following...Ch. D1.1 - Solving initial value problems Solve the following...Ch. D1.1 - Solving initial value problems Solve the following...Ch. D1.1 - Solving initial value problems Solve the following...Ch. D1.1 - Motion in a gravitational field An object is fired...Ch. D1.1 - Prob. 30ECh. D1.1 - Prob. 31ECh. D1.1 - Prob. 32ECh. D1.1 - Prob. 33ECh. D1.1 - Prob. 34ECh. D1.1 - Explain why or why not Determine whether the...Ch. D1.1 - General solutions Find the general solution of the...Ch. D1.1 - General solutions Find the general solution of the...Ch. D1.1 - General solutions Find the general solution of the...Ch. D1.1 - General solutions Find the general solution of the...Ch. D1.1 - Solving initial value problems Find the solution...Ch. D1.1 - Solving initial value problems Find the solution...Ch. D1.1 - Solving initial value problems Find the solution...Ch. D1.1 - Solving initial value problems Find the solution...Ch. D1.1 - Verifying general solutions Verify that the given...Ch. D1.1 - Verifying general solutions Verify that the given...Ch. D1.1 - Verifying general solutions Verify that the given...Ch. D1.1 - Verifying general solutions Verify that the given...Ch. D1.1 - Verifying general solutions Verify that the given...Ch. D1.1 - Verifying general solutions Verify that the given...Ch. D1.1 - A second-order equation Consider the differential...Ch. D1.1 - Another second-order equation Consider the...Ch. D1.1 - Drug infusion The delivery of a drug (such as an...Ch. D1.1 - Logistic population growth Widely used models for...Ch. D1.1 - Free fall One possible model that describes the...Ch. D1.1 - Chemical rate equations The reaction of certain...Ch. D1.1 - Tumor growth The growth of cancer tumors may be...Ch. D1.2 - Explain how to sketch the direction field of the...Ch. D1.2 - Prob. 2ECh. D1.2 - Prob. 3ECh. D1.2 - Prob. 4ECh. D1.2 - Direction fields A differential equation and its...Ch. D1.2 - Prob. 6ECh. D1.2 - Identifying direction fields Which of the...Ch. D1.2 - Prob. 9ECh. D1.2 - Prob. 10ECh. D1.2 - Direction fields with technology Plot a direction...Ch. D1.2 - Sketching direction fields Use the window [2, 2] ...Ch. D1.2 - Sketching direction fields Use the window [2, 2] ...Ch. D1.2 - Sketching direction fields Use the window [2, 2] ...Ch. D1.2 - Sketching direction fields Use the window [2, 2] ...Ch. D1.2 - Sketching direction fields Use the window [2, 2] ...Ch. D1.2 - Increasing and decreasing solutions Consider the...Ch. D1.2 - Increasing and decreasing solutions Consider the...Ch. D1.2 - Increasing and decreasing solutions Consider the...Ch. D1.2 - Increasing and decreasing solutions Consider the...Ch. D1.2 - Logistic equations Consider the following logistic...Ch. D1.2 - Logistic equations Consider the following logistic...Ch. D1.2 - Logistic equations Consider the following logistic...Ch. D1.2 - Logistic equations Consider the following logistic...Ch. D1.2 - Two steps of Eulers method For the following...Ch. D1.2 - Two steps of Eulers method For the following...Ch. D1.2 - Two steps of Eulers method For the following...Ch. D1.2 - Two steps of Eulers method For the following...Ch. D1.2 - Errors in Eulers method Consider the following...Ch. D1.2 - Errors in Eulers method Consider the following...Ch. D1.2 - Prob. 31ECh. D1.2 - Prob. 32ECh. D1.2 - Prob. 33ECh. D1.2 - Prob. 34ECh. D1.2 - Prob. 35ECh. D1.2 - Prob. 36ECh. D1.2 - Prob. 37ECh. D1.2 - Equilibrium solutions A differential equation of...Ch. D1.2 - Prob. 39ECh. D1.2 - Prob. 40ECh. D1.2 - Equilibrium solutions A differential equation of...Ch. D1.2 - Equilibrium solutions A differential equation of...Ch. D1.2 - Direction field analysis Consider the first-order...Ch. D1.2 - Eulers method on more general grids Suppose the...Ch. D1.2 - Prob. 46ECh. D1.2 - Prob. 47ECh. D1.2 - Prob. 48ECh. D1.2 - Convergence of Eulers method Suppose Eulers method...Ch. D1.2 - Stability of Eulers method Consider the initial...Ch. D1.3 - What is a separable first-order differential...Ch. D1.3 - Is the equation t2y(t)=t+4y2 separable?Ch. D1.3 - Is the equation y(t)=2yt separable?Ch. D1.3 - Explain how to solve a separable differential...Ch. D1.3 - Solving separable equations Find the general...Ch. D1.3 - Solving separable equations Find the general...Ch. D1.3 - Solving separable equations Find the general...Ch. D1.3 - Solving separable equations Find the general...Ch. D1.3 - Solving separable equations Find the general...Ch. D1.3 - Solving separable equations Find the general...Ch. D1.3 - Solving separable equations Find the general...Ch. D1.3 - Solving separable equations Find the general...Ch. D1.3 - Solving separable equations Find the general...Ch. D1.3 - Solving separable equations Find the general...Ch. D1.3 - Solving separable equations Find the general...Ch. D1.3 - Solving separable equations Find the general...Ch. D1.3 - Prob. 17ECh. D1.3 - Solving initial value problems Determine whether...Ch. D1.3 - Solving initial value problems Determine whether...Ch. D1.3 - Solving initial value problems Determine whether...Ch. D1.3 - Solving initial value problems Determine whether...Ch. D1.3 - Solving initial value problems Determine whether...Ch. D1.3 - Prob. 23ECh. D1.3 - Prob. 24ECh. D1.3 - Solving initial value problems Determine whether...Ch. D1.3 - Solving initial value problems Determine whether...Ch. D1.3 - Prob. 27ECh. D1.3 - Solutions in implicit form Solve the following...Ch. D1.3 - Solutions in implicit form Solve the following...Ch. D1.3 - Solutions in implicit form Solve the following...Ch. D1.3 - Prob. 31ECh. D1.3 - Solutions in implicit form Solve the following...Ch. D1.3 - Logistic equation for a population A community of...Ch. D1.3 - Logistic equation for an epidemic When an infected...Ch. D1.3 - Explain why or why not Determine whether the...Ch. D1.3 - Prob. 36ECh. D1.3 - Prob. 37ECh. D1.3 - Prob. 38ECh. D1.3 - Solutions of separable equations Solve the...Ch. D1.3 - Prob. 40ECh. D1.3 - Implicit solutions for separable equations For the...Ch. D1.3 - Orthogonal trajectories Two curves are orthogonal...Ch. D1.3 - Prob. 43ECh. D1.3 - Applications 44.Logistic equation for spread of...Ch. D1.3 - Free fall An object in free fall may be modeled by...Ch. D1.3 - Prob. 46ECh. D1.3 - Prob. 47ECh. D1.3 - Chemical rate equations Let y(t) be the...Ch. D1.3 - Prob. 49ECh. D1.3 - Blowup in finite time Consider the initial value...Ch. D1.3 - Prob. 52ECh. D1.3 - Analysis of a separable equation Consider the...Ch. D1.4 - The general solution of a first-order linear...Ch. D1.4 - Prob. 2ECh. D1.4 - What is the general solution of the equation y'(t)...Ch. D1.4 - Prob. 4ECh. D1.4 - First-order linear equations Find the general...Ch. D1.4 - First-order linear equations Find the general...Ch. D1.4 - First-order linear equations Find the general...Ch. D1.4 - First-order linear equations Find the general...Ch. D1.4 - First-order linear equations Find the general...Ch. D1.4 - First-order linear equations Find the general...Ch. D1.4 - Initial value problems Solve the following initial...Ch. D1.4 - Initial value problems Solve the following initial...Ch. D1.4 - Initial value problems Solve the following initial...Ch. D1.4 - Initial value problems Solve the following initial...Ch. D1.4 - Initial value problems Solve the following initial...Ch. D1.4 - Initial value problems Solve the following initial...Ch. D1.4 - Stability of equilibrium points Find the...Ch. D1.4 - Stability of equilibrium points Find the...Ch. D1.4 - Stability of equilibrium points Find the...Ch. D1.4 - Stability of equilibrium points Find the...Ch. D1.4 - Stability of equilibrium points Find the...Ch. D1.4 - Stability of equilibrium points Find the...Ch. D1.4 - Loan problems The following initial value problems...Ch. D1.4 - Loan problems The following initial value problems...Ch. D1.4 - Loan problems The following initial value problems...Ch. D1.4 - Loan problems The following initial value problems...Ch. D1.4 - Newtons Law of Cooling Solve the differential...Ch. D1.4 - Newton's Law of Cooling Solve the differential...Ch. D1.4 - Newtons Law of Cooling Solve the differential...Ch. D1.4 - Prob. 30ECh. D1.4 - Explain why or why not Determine whether the...Ch. D1.4 - Prob. 32ECh. D1.4 - Special equations A special class of first-order...Ch. D1.4 - Prob. 34ECh. D1.4 - Special equations A special class of first-order...Ch. D1.4 - Prob. 36ECh. D1.4 - A bad loan Consider a loan repayment plan...Ch. D1.4 - Prob. 38ECh. D1.4 - Intravenous drug dosing The amount of drug in the...Ch. D1.4 - Optimal harvesting rate Let y(t) be the population...Ch. D1.4 - Endowment model An endowment is an investment...Ch. D1.4 - Prob. 43ECh. D1.4 - Prob. 44ECh. D1.4 - General first-order linear equations Consider the...Ch. D1.4 - Prob. 46ECh. D1.4 - Prob. 47ECh. D1.4 - General first-order linear equations Consider the...Ch. D1.5 - Explain how the growth rate function determines...Ch. D1.5 - Prob. 2ECh. D1.5 - Explain how the growth rate function can be...Ch. D1.5 - Prob. 4ECh. D1.5 - Is the differential equation that describes a...Ch. D1.5 - What are the assumptions underlying the...Ch. D1.5 - Describe the solution curves in a predator-prey...Ch. D1.5 - Prob. 8ECh. D1.5 - Solving logistic equations Write a logistic...Ch. D1.5 - Solving logistic equations Write a logistic...Ch. D1.5 - Designing logistic functions Use the method of...Ch. D1.5 - Designing logistic functions Use the method of...Ch. D1.5 - Prob. 19ECh. D1.5 - Prob. 20ECh. D1.5 - Solving the Gompertz equation Solve the Gompertz...Ch. D1.5 - Prob. 22ECh. D1.5 - Stirred tank reactions For each of the following...Ch. D1.5 - Prob. 24ECh. D1.5 - Prob. 25ECh. D1.5 - Prob. 26ECh. D1.5 - Prob. 31ECh. D1.5 - Growth rate functions a.Show that the logistic...Ch. D1.5 - Solution of the logistic equation Use separation...Ch. D1.5 - Properties of the Gompertz solution Verify that...Ch. D1.5 - Properties of stirred tank solutions a.Show that...Ch. D1.5 - Prob. 36ECh. D1.5 - RC circuit equation Suppose a battery with voltage...Ch. D1.5 - U.S. population projections According to the U.S....Ch. D1 - Explain why or why not Determine whether the...Ch. D1 - Prob. 2RECh. D1 - General solutions Use the method of your choice to...Ch. D1 - General solutions Use the method of your choice to...Ch. D1 - General solutions Use the method of your choice to...Ch. D1 - Prob. 6RECh. D1 - General solutions Use the method of your choice to...Ch. D1 - General solutions Use the method of your choice to...Ch. D1 - General solutions Use the method of your choice to...Ch. D1 - Prob. 10RECh. D1 - Solving initial value problems Use the method of...Ch. D1 - Prob. 12RECh. D1 - Solving initial value problems Use the method of...Ch. D1 - Prob. 14RECh. D1 - Solving initial value problems Use the method of...Ch. D1 - Solving initial value problems Use the method of...Ch. D1 - Prob. 17RECh. D1 - Solving initial value problems Use the method of...Ch. D1 - Direction fields Consider the direction field for...Ch. D1 - Prob. 20RECh. D1 - Eulers method Consider the initial value problem...Ch. D1 - Equilibrium solutions Find the equilibrium...Ch. D1 - Equilibrium solutions Find the equilibrium...Ch. D1 - Equilibrium solutions Find the equilibrium...Ch. D1 - Equilibrium solutions Find the equilibrium...Ch. D1 - Logistic growth The population of a rabbit...Ch. D1 - Logistic growth parameters A cell culture has a...Ch. D1 - Logistic growth in India The population of India...Ch. D1 - Stirred tank reaction A 100-L tank is filled with...Ch. D1 - Newtons Law of Cooling A cup of coffee is removed...Ch. D1 - A first-order equation Consider the equation...Ch. D1 - A second-order equation Consider the equation...
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