Multivariable Calculus
Multivariable Calculus
8th Edition
ISBN: 9781305266643
Author: James Stewart
Publisher: Cengage Learning
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Chapter 12.2, Problem 1E

Are the following quantities vectors or scalars? Explain.

(a) The cost of a theater ticket

(b) The current in a river

(c) The initial flight path from Houston to Dallas

(d) The population of tire world

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Chapter 12 Solutions

Multivariable Calculus

Ch. 12.1 - Suppose you start at the origin, move along the...Ch. 12.1 - Sketch the points (1, 5, 3), (0, 2, 3), (3, 0, 2),...Ch. 12.1 - Which of the points A(4, 0, 1), B(3, 1, 5), and...Ch. 12.1 - Prob. 4ECh. 12.1 - What does the equation x = 4 represent in 2? What...Ch. 12.1 - What does the equation y = 3 represent in 3? What...Ch. 12.1 - Describe and sketch the surface in 3 represented...Ch. 12.1 - Describe and sketch the surface in 3 represented...Ch. 12.1 - Find the lengths of the sides of the triangle PQR....Ch. 12.1 - Find the lengths of the sides of the triangle PQR....
Ch. 12.1 - Determine whether the points lie on a straight...Ch. 12.1 - Find the distance from (4, 2, 6) to each of the...Ch. 12.1 - Find an equation of the sphere with center (3, 2,...Ch. 12.1 - Find an equation of the sphere with center (2, 6,...Ch. 12.1 - Find an equation of the sphere that passes through...Ch. 12.1 - Find an equation of the sphere that passes through...Ch. 12.1 - Show that the equation represents a sphere, and...Ch. 12.1 - Prob. 18ECh. 12.1 - Prob. 19ECh. 12.1 - Prob. 20ECh. 12.1 - (a) Prove that the midpoint of the line segment...Ch. 12.1 - Find an equation of a sphere if one of its...Ch. 12.1 - Find equations of the spheres with center (2, 3,...Ch. 12.1 - Prob. 24ECh. 12.1 - Prob. 25ECh. 12.1 - Prob. 26ECh. 12.1 - Describe in words the region of 3 represented by...Ch. 12.1 - Describe in words the region of 3 represented by...Ch. 12.1 - Describe in words the region of 3 represented by...Ch. 12.1 - Prob. 30ECh. 12.1 - Describe in words the region of 3 represented by...Ch. 12.1 - Prob. 32ECh. 12.1 - Describe in words the region of 3 represented by...Ch. 12.1 - Describe in words the region of 3 represented by...Ch. 12.1 - Describe in words the region of 3 represented by...Ch. 12.1 - Prob. 36ECh. 12.1 - Describe in words the region of 3 represented by...Ch. 12.1 - Prob. 38ECh. 12.1 - Write inequalities to describe the region. 39. The...Ch. 12.1 - Write inequalities to describe the region. 40. The...Ch. 12.1 - Write inequalities to describe the region. 41. The...Ch. 12.1 - Write inequalities to describe the region. 42. The...Ch. 12.1 - Prob. 43ECh. 12.1 - Consider the points P such that the distance from...Ch. 12.1 - Find an equation of the set of all points...Ch. 12.1 - Find the volume of the solid that lies inside both...Ch. 12.1 - Prob. 47ECh. 12.1 - Prob. 48ECh. 12.2 - Are the following quantities vectors or scalars?...Ch. 12.2 - What is the relationship between the point (4, 7)...Ch. 12.2 - Name all the equal vectors in the parallelogram...Ch. 12.2 - Prob. 4ECh. 12.2 - Prob. 5ECh. 12.2 - Copy the vectors in the figure and use them to...Ch. 12.2 - In the figure, the tip of c and the tail of d are...Ch. 12.2 - If the vectors in the figure satisfy |u | = | v |...Ch. 12.2 - Find a vector a with representation given by the...Ch. 12.2 - Prob. 10ECh. 12.2 - Find a vector a with representation given by the...Ch. 12.2 - Find a vector a with representation given by the...Ch. 12.2 - Find a vector a with representation given by the...Ch. 12.2 - Prob. 14ECh. 12.2 - Prob. 15ECh. 12.2 - Find the sum of the given vectors and illustrate...Ch. 12.2 - Prob. 17ECh. 12.2 - Prob. 18ECh. 12.2 - Prob. 19ECh. 12.2 - Prob. 20ECh. 12.2 - Find a + b, 4a + 2b, | a |, and | a b | 21. a =...Ch. 12.2 - Prob. 22ECh. 12.2 - Prob. 23ECh. 12.2 - Prob. 24ECh. 12.2 - Prob. 25ECh. 12.2 - Prob. 26ECh. 12.2 - Prob. 27ECh. 12.2 - Prob. 28ECh. 12.2 - Prob. 29ECh. 12.2 - Prob. 30ECh. 12.2 - Prob. 31ECh. 12.2 - Find the magnitude of the resultant force and the...Ch. 12.2 - Prob. 33ECh. 12.2 - Prob. 34ECh. 12.2 - A woman walks due west on the deck of a ship at 3...Ch. 12.2 - Prob. 36ECh. 12.2 - A block-and-tackle pulley hoist is suspended in a...Ch. 12.2 - The tension T at each end of a chain has magnitude...Ch. 12.2 - A boatman wants to cross a canal that is 3 km wide...Ch. 12.2 - Three forces act on an object. Two of the forces...Ch. 12.2 - Find the unit vectors that are parallel to the...Ch. 12.2 - Prob. 42ECh. 12.2 - Prob. 43ECh. 12.2 - Let C be the point on the line segment AB that is...Ch. 12.2 - (a) Draw the vectors a = 3, 2, b = 2, 1, and c =...Ch. 12.2 - Suppose that a and b are nonzero vectors that are...Ch. 12.2 - If r = x, y, z and r0 = x0, y0, z0, describe the...Ch. 12.2 - Prob. 48ECh. 12.2 - Prob. 49ECh. 12.2 - Prove Property 5 of vectors algebraically for the...Ch. 12.2 - Use vectors to prove that the line joining the...Ch. 12.2 - Prob. 52ECh. 12.3 - Which of the following expressions are meaningful?...Ch. 12.3 - Prob. 2ECh. 12.3 - Find a b. 3. a = 1.5, 0.4, b = 4, 6Ch. 12.3 - Find a b. 4. a = 6, 2, 3, b = 2, 5, 1Ch. 12.3 - Prob. 5ECh. 12.3 - Find a b. 6. a. = p, p, 2p, b = 2q, q, qCh. 12.3 - Prob. 7ECh. 12.3 - Prob. 8ECh. 12.3 - Find a b. 9. | a | = 7, | b | = 4, the angle...Ch. 12.3 - Find a b. 10. | a | = 80, | b | = 50, the angle...Ch. 12.3 - If u is a unit vector, find u v and u w.Ch. 12.3 - If u is a unit vector, find u v and u w.Ch. 12.3 - (a) Show that i j = j k = k i = 0. (b) Show...Ch. 12.3 - A street vendor sells a hamburgers, b hot dogs,...Ch. 12.3 - Find the angle between the vectors. (First find an...Ch. 12.3 - Prob. 16ECh. 12.3 - Prob. 17ECh. 12.3 - Prob. 18ECh. 12.3 - Prob. 19ECh. 12.3 - Prob. 20ECh. 12.3 - Prob. 21ECh. 12.3 - Find, correct to the nearest degree, the three...Ch. 12.3 - Prob. 23ECh. 12.3 - Prob. 24ECh. 12.3 - Use vectors to decide whether the triangle with...Ch. 12.3 - Find the values of x such that the angle between...Ch. 12.3 - Prob. 27ECh. 12.3 - Find two unit vectors that make an angle of 60...Ch. 12.3 - Find the acute angle between the lines. 29. 2x y...Ch. 12.3 - Prob. 30ECh. 12.3 - Prob. 31ECh. 12.3 - Find the acute angles between the curves at their...Ch. 12.3 - Prob. 33ECh. 12.3 - Find the direction cosines and direction angles of...Ch. 12.3 - Prob. 35ECh. 12.3 - Prob. 36ECh. 12.3 - Find the direction cosines and direction angles of...Ch. 12.3 - Prob. 38ECh. 12.3 - Prob. 39ECh. 12.3 - Prob. 40ECh. 12.3 - Find the scalar and vector projections of b onto...Ch. 12.3 - Prob. 42ECh. 12.3 - Prob. 43ECh. 12.3 - Prob. 44ECh. 12.3 - Prob. 45ECh. 12.3 - Prob. 46ECh. 12.3 - Prob. 47ECh. 12.3 - Suppose that a and b are nonzero vectors. (a)...Ch. 12.3 - Prob. 49ECh. 12.3 - A tow truck drags a stalled car along a road. The...Ch. 12.3 - Prob. 51ECh. 12.3 - A boat sails south with the help of a wind blowing...Ch. 12.3 - Use a scalar projection to show that the distance...Ch. 12.3 - If r = x, y, z a = a1, a2, a3, and b = b1, b2, b3,...Ch. 12.3 - Prob. 55ECh. 12.3 - Prob. 56ECh. 12.3 - Prob. 57ECh. 12.3 - If c = | a | b + | b | a, where a, b, and c are...Ch. 12.3 - Prob. 59ECh. 12.3 - Suppose that all sides of a quadrilateral are...Ch. 12.3 - Use Theorem 3 to prove the Cauchy-Schwarz...Ch. 12.3 - The Triangle Inequality for vectors is | a + b | ...Ch. 12.3 - The Parallelogram Law states that | a + b |2 + | a...Ch. 12.3 - Prob. 64ECh. 12.3 - Prob. 65ECh. 12.4 - Find the cross product a b and verify that it is...Ch. 12.4 - Prob. 2ECh. 12.4 - Prob. 3ECh. 12.4 - Prob. 4ECh. 12.4 - Prob. 5ECh. 12.4 - Find the cross product a b and verify that it is...Ch. 12.4 - Prob. 7ECh. 12.4 - If a = i 2k and b = j + k, find a b. Sketch a,...Ch. 12.4 - Find the vector, not with determinants, but by...Ch. 12.4 - Find the vector, not with determinants, but by...Ch. 12.4 - Find the vector, not with determinants, but by...Ch. 12.4 - Find the vector, not with determinants, but by...Ch. 12.4 - State whether each expression is meaningful. If...Ch. 12.4 - Find |u v| and determine whether u v is directed...Ch. 12.4 - Find |u v| and determine whether u v is directed...Ch. 12.4 - Prob. 16ECh. 12.4 - If a = 2, 1, 3 and b = 4, 2, 1, find a b and b ...Ch. 12.4 - Prob. 18ECh. 12.4 - Find two unit vectors orthogonal to both 3, 2, 1...Ch. 12.4 - Find two unit vectors orthogonal to both j k and...Ch. 12.4 - Prob. 21ECh. 12.4 - Prob. 22ECh. 12.4 - Prob. 23ECh. 12.4 - Prove the property of cross products (Theorem 11)....Ch. 12.4 - Prob. 25ECh. 12.4 - Prob. 26ECh. 12.4 - Find the area of the parallelogram with vertices...Ch. 12.4 - Find the area of the parallelogram with vertices...Ch. 12.4 - (a) Find a nonzero vector orthogonal to the plane...Ch. 12.4 - (a) Find a nonzero vector orthogonal to the plane...Ch. 12.4 - (a) Find a nonzero vector orthogonal to the plane...Ch. 12.4 - Prob. 32ECh. 12.4 - Find the volume of the parallelepiped determined...Ch. 12.4 - Find the volume of the parallelepiped determined...Ch. 12.4 - Find the volume of the parallelepiped with...Ch. 12.4 - Prob. 36ECh. 12.4 - Prob. 37ECh. 12.4 - Prob. 38ECh. 12.4 - Prob. 39ECh. 12.4 - Prob. 40ECh. 12.4 - Prob. 41ECh. 12.4 - Let v = 5j and let u be a vector with length 3...Ch. 12.4 - Prob. 43ECh. 12.4 - Prob. 44ECh. 12.4 - (a) Let P be a point not on the line L that passes...Ch. 12.4 - Prob. 47ECh. 12.4 - Prob. 48ECh. 12.4 - Prove that (a b) (a + b) = 2(a b).Ch. 12.4 - Prob. 50ECh. 12.4 - Use Exercise 50 to prove that a (b c) + b (c ...Ch. 12.4 - Prove that (ab)(cd)=|acbcadbd|Ch. 12.4 - Prob. 53ECh. 12.4 - If v1, v2, and v3 are noncoplanar vectors, let...Ch. 12.5 - Determine whether each statement is true or false...Ch. 12.5 - Find a vector equation and parametric equations...Ch. 12.5 - Find a vector equation and parametric equations...Ch. 12.5 - Prob. 4ECh. 12.5 - Find a vector equation and parametric equations...Ch. 12.5 - Prob. 6ECh. 12.5 - Find parametric equations and symmetric equations...Ch. 12.5 - Prob. 8ECh. 12.5 - Find parametric equations and symmetric equations...Ch. 12.5 - Find parametric equations and symmetric equations...Ch. 12.5 - Find parametric equations and symmetric equations...Ch. 12.5 - Find parametric equations and symmetric equations...Ch. 12.5 - Is the line through (4, 6, 1) and (2, 0, 3)...Ch. 12.5 - Prob. 14ECh. 12.5 - (a) Find symmetric equations for the line that...Ch. 12.5 - (a) Find parametric equations for the line through...Ch. 12.5 - Prob. 17ECh. 12.5 - Prob. 18ECh. 12.5 - Determine whether the lines L1 and L2 are...Ch. 12.5 - Prob. 20ECh. 12.5 - Prob. 21ECh. 12.5 - Prob. 22ECh. 12.5 - Find an equation of the plane. 23. The plane...Ch. 12.5 - Prob. 24ECh. 12.5 - Find an equation of the plane. 25. The plane...Ch. 12.5 - Prob. 26ECh. 12.5 - Find an equation of the plane. 27. The plane...Ch. 12.5 - Find an equation of the plane. 28. The plane...Ch. 12.5 - Find an equation of the plane. 29. The plane...Ch. 12.5 - Prob. 30ECh. 12.5 - Find an equation of the plane. 31. The plane...Ch. 12.5 - Find an equation of the plane. 32. The plane...Ch. 12.5 - Find an equation of the plane. 33. The plane...Ch. 12.5 - Prob. 34ECh. 12.5 - Find an equation of the plane. 35. The plane that...Ch. 12.5 - Find an equation of the plane. 36. The plane that...Ch. 12.5 - Find an equation of the plane. 37. The plane that...Ch. 12.5 - Find an equation of the plane. 38. The plane that...Ch. 12.5 - Prob. 39ECh. 12.5 - Prob. 40ECh. 12.5 - Use intercepts to help sketch the plane. 41. 2x +...Ch. 12.5 - Prob. 42ECh. 12.5 - Prob. 43ECh. 12.5 - Prob. 44ECh. 12.5 - Prob. 45ECh. 12.5 - Prob. 46ECh. 12.5 - Find the point at which the line intersects the...Ch. 12.5 - Where does the line through (3, 1, 0) and (1, 5,...Ch. 12.5 - Find direction numbers for the line of...Ch. 12.5 - Prob. 50ECh. 12.5 - Prob. 51ECh. 12.5 - Determine whether the planes are parallel,...Ch. 12.5 - Prob. 53ECh. 12.5 - Determine whether the planes are parallel,...Ch. 12.5 - Prob. 55ECh. 12.5 - Prob. 56ECh. 12.5 - (a) Find parametric equations for the line of...Ch. 12.5 - (a) Find parametric equations for the line of...Ch. 12.5 - Prob. 59ECh. 12.5 - Find symmetric equations for the line of...Ch. 12.5 - Prob. 61ECh. 12.5 - Find an equation for the plane consisting of all...Ch. 12.5 - Prob. 63ECh. 12.5 - (a) Find the point at which the given lines...Ch. 12.5 - Prob. 65ECh. 12.5 - Prob. 66ECh. 12.5 - Prob. 67ECh. 12.5 - Prob. 68ECh. 12.5 - Prob. 69ECh. 12.5 - Prob. 70ECh. 12.5 - Prob. 71ECh. 12.5 - Prob. 72ECh. 12.5 - Find the distance between the given parallel...Ch. 12.5 - Find the distance between the given parallel...Ch. 12.5 - Show that the distance between the parallel planes...Ch. 12.5 - Prob. 76ECh. 12.5 - Show that the lines with symmetric equations x = y...Ch. 12.5 - Find the distance between the skew lines with...Ch. 12.5 - Let L1 be the line through the origin and the...Ch. 12.5 - Let L1 be the line through the points (1, 2, 6)...Ch. 12.5 - Prob. 81ECh. 12.5 - Prob. 82ECh. 12.5 - If a, b, and c are not all 0, show that the...Ch. 12.6 - (a) What does the equation y = x2 represent as a...Ch. 12.6 - (a)Sketch the graph of y = ex as a curve in 2. (b)...Ch. 12.6 - Describe and sketch the surface. x2 + z2 = 1Ch. 12.6 - Describe and sketch the surface. 4x2 + y2 = 4Ch. 12.6 - Describe and sketch the surface. z = 1 y2Ch. 12.6 - Describe and sketch the surface. y = z2Ch. 12.6 - Prob. 7ECh. 12.6 - Describe and sketch the surface. z = sin yCh. 12.6 - (a) Find and identify the traces of the quadric...Ch. 12.6 - (a) Find and identify the traces of the quadric...Ch. 12.6 - Prob. 11ECh. 12.6 - Use traces to sketch and identify the surface. 4x2...Ch. 12.6 - Use traces to sketch and identify the surface. x2...Ch. 12.6 - Prob. 14ECh. 12.6 - Use traces to sketch and identify the surface. 9y2...Ch. 12.6 - Prob. 16ECh. 12.6 - Prob. 17ECh. 12.6 - Use traces to sketch and identify the surface. 3x2...Ch. 12.6 - Prob. 19ECh. 12.6 - Use traces to sketch and identify the surface. x =...Ch. 12.6 - Match the equation with its graph (labeled...Ch. 12.6 - Match the equation with its graph (labeled...Ch. 12.6 - Match the equation with its graph (labeled...Ch. 12.6 - Match the equation with its graph (labeled...Ch. 12.6 - Match the equation with its graph (labeled...Ch. 12.6 - Match the equation with its graph (labeled...Ch. 12.6 - Match the equation with its graph (labeled...Ch. 12.6 - Match the equation with its graph (labeled...Ch. 12.6 - Prob. 29ECh. 12.6 - Prob. 30ECh. 12.6 - Prob. 31ECh. 12.6 - Reduce the equation to one of the standard forms,...Ch. 12.6 - Prob. 33ECh. 12.6 - Prob. 34ECh. 12.6 - Prob. 35ECh. 12.6 - Reduce the equation to one of the standard forms,...Ch. 12.6 - Prob. 37ECh. 12.6 - Reduce the equation to one of the standard forms,...Ch. 12.6 - Sketch the region bounded by the surfaces z=x2+y2...Ch. 12.6 - Sketch the region bounded by the paraboloids z =...Ch. 12.6 - Prob. 45ECh. 12.6 - Find an equation for the surface obtained by...Ch. 12.6 - Find an equation for the surface consisting of all...Ch. 12.6 - Find an equation for the surface consisting of all...Ch. 12.6 - Traditionally, the earths surface has been modeled...Ch. 12.6 - A cooling tower for a nuclear reactor is to be...Ch. 12.6 - Show that if the point (a, b, c) lies on the...Ch. 12.6 - Show that the curve of intersection of the...Ch. 12 - What is the difference between a vector and a...Ch. 12 - Prob. 2RCCCh. 12 - If a is a vector and c is a scalar, how is ca...Ch. 12 - Prob. 4RCCCh. 12 - Prob. 5RCCCh. 12 - Prob. 6RCCCh. 12 - Prob. 7RCCCh. 12 - Prob. 8RCCCh. 12 - Prob. 9RCCCh. 12 - Prob. 10RCCCh. 12 - Prob. 11RCCCh. 12 - Prob. 12RCCCh. 12 - Write a vector equation, parametric equations, and...Ch. 12 - Prob. 14RCCCh. 12 - Prob. 15RCCCh. 12 - (a) Describe a method for determining whether...Ch. 12 - Prob. 17RCCCh. 12 - What are the traces of a surface? How do you find...Ch. 12 - Write equations in standard form of the six types...Ch. 12 - Prob. 1RQCh. 12 - Prob. 2RQCh. 12 - Prob. 3RQCh. 12 - Prob. 4RQCh. 12 - Prob. 5RQCh. 12 - Prob. 6RQCh. 12 - Prob. 7RQCh. 12 - Prob. 8RQCh. 12 - Prob. 9RQCh. 12 - Prob. 10RQCh. 12 - Prob. 11RQCh. 12 - Determine whether the statement is true or false....Ch. 12 - Prob. 13RQCh. 12 - Prob. 14RQCh. 12 - Prob. 15RQCh. 12 - Prob. 16RQCh. 12 - Prob. 17RQCh. 12 - Determine whether the statement is true or false....Ch. 12 - Prob. 19RQCh. 12 - Prob. 20RQCh. 12 - Prob. 21RQCh. 12 - Prob. 22RQCh. 12 - Prob. 1RECh. 12 - Prob. 2RECh. 12 - If u and v are the vectors shown in the figure,...Ch. 12 - Calculate the given quantity if a = i + j 2k b =...Ch. 12 - Prob. 5RECh. 12 - Find two unit vectors that are orthogonal to both...Ch. 12 - Suppose that u (v w) = 2. Find (a) (u v) w (b)...Ch. 12 - Show that if a, b, and c are in V3, then (a b) ...Ch. 12 - Find the acute angle between two diagonals of a...Ch. 12 - Prob. 10RECh. 12 - (a) Find a vector perpendicular to the plane...Ch. 12 - Prob. 12RECh. 12 - Prob. 13RECh. 12 - Prob. 14RECh. 12 - Find parametric equations for the line. 15. The...Ch. 12 - Find parametric equations for the line. 16. The...Ch. 12 - Find parametric equations for the line. 17. The...Ch. 12 - Find an equation of the plane. 18. The plane...Ch. 12 - Find an equation of the plane. 19. The plane...Ch. 12 - Find an equation of the plane. 20. The plane...Ch. 12 - Prob. 21RECh. 12 - Find the distance from the origin to the line x =...Ch. 12 - Prob. 23RECh. 12 - Prob. 24RECh. 12 - Prob. 25RECh. 12 - (a) Find an equation of the plane that passes...Ch. 12 - Find the distance between the planes 3x + y 4z =...Ch. 12 - Identify and sketch the graph of each surface. 28....Ch. 12 - Identify and sketch the graph of each surface. 29....Ch. 12 - Identify and sketch the graph of each surface. 30....Ch. 12 - Identify and sketch the graph of each surface. 31....Ch. 12 - Identify and sketch the graph of each surface. 32....Ch. 12 - Identify and sketch the graph of each surface. 33....Ch. 12 - Identify and sketch the graph of each surface. 34....Ch. 12 - Identify and sketch the graph of each surface. 35....Ch. 12 - Prob. 36RECh. 12 - An ellipsoid is created by rotating the ellipse...Ch. 12 - A surface consists of all points P such that the...Ch. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - Suppose v1 and v2 are vectors with |v1| = 2, |v2 |...
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Vector Addition and Scalar Multiplication, Example 1; Author: patrickJMT;https://www.youtube.com/watch?v=pNMrYACjHXQ;License: Standard YouTube License, CC-BY