CALCULUS EARLY TRANSCENDENTALS W/ WILE
11th Edition
ISBN: 9781119228509
Author: Anton
Publisher: WILEY
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Textbook Question
Chapter 12.5, Problem 29ES
Use the result in Exercise 23(a) to find the curvature at the stated point.
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Chapter 12 Solutions
CALCULUS EARLY TRANSCENDENTALS W/ WILE
Ch. 12.1 - Prob. 1QCECh. 12.1 - Describe the graph of rt=1+2t,1+3t.Ch. 12.1 - Prob. 3QCECh. 12.1 - Prob. 4QCECh. 12.1 - Find the domain of rt and the value of rt0....Ch. 12.1 - Find the domain of rt and the value of rt0....Ch. 12.1 - Find the domain of rt and the value of rt0....Ch. 12.1 - Find the domain of rt and the value of rt0....Ch. 12.1 - Prob. 5ESCh. 12.1 - Prob. 6ES
Ch. 12.1 - Prob. 7ESCh. 12.1 - Prob. 8ESCh. 12.1 - Describe the graph of the equation. r=32ti+5tjCh. 12.1 - Describe the graph of the equation....Ch. 12.1 - Describe the graph of the equation. r=2ti3j+1+3tkCh. 12.1 - Prob. 12ESCh. 12.1 - Describe the graph of the equation....Ch. 12.1 - Describe the graph of the equation. r=3i+1t2j+tkCh. 12.1 - (a) Find the slope of the line in 2-space that is...Ch. 12.1 - (a) Find the y-intercept of the line in 2-space...Ch. 12.1 - Prob. 17ESCh. 12.1 - Sketch the line segment represented by each vector...Ch. 12.1 - Write a vector equation for the line segment from...Ch. 12.1 - Write a vector equation for the line segment from...Ch. 12.1 - Sketch the graph of rt and show the direction of...Ch. 12.1 - Sketch the graph of rt and show the direction of...Ch. 12.1 - Sketch the graph of rt and show the direction of...Ch. 12.1 - Sketch the graph of rt and show the direction of...Ch. 12.1 - Sketch the graph of rt and show the direction of...Ch. 12.1 - Sketch the graph of rt and show the direction of...Ch. 12.1 - Sketch the graph of rt and show the direction of...Ch. 12.1 - Sketch the graph of rt and show the direction of...Ch. 12.1 - Sketch the graph of rt and show the direction of...Ch. 12.1 - Sketch the graph of rt and show the direction of...Ch. 12.1 - Prob. 31ESCh. 12.1 - Prob. 32ESCh. 12.1 - Determine whether the statement is true or false....Ch. 12.1 - Determine whether the statement is true or false....Ch. 12.1 - Sketch the curve of intersection of the surfaces,...Ch. 12.1 - Sketch the curve of intersection of the surfaces,...Ch. 12.1 - Sketch the curve of intersection of the surfaces,...Ch. 12.1 - Prob. 38ESCh. 12.1 - Show that the graph of r=tsinti+tcostj+t2k lies on...Ch. 12.1 - Show that the graph of r=ti+1+ttj+1t2tk,t0 lies in...Ch. 12.1 - Prob. 41ESCh. 12.1 - Show that the graph of r=3costi+3sintj+3sintk is...Ch. 12.1 - Prob. 43ESCh. 12.1 - How many revolutions will the circular helix...Ch. 12.1 - Show that the curve r=tcosti+tsintj+tk,t0, lies on...Ch. 12.1 - Describe the curve r=acosti+bsintj+ctk, where...Ch. 12.1 - In each part, match the vector equation with one...Ch. 12.1 - (a) Find parametric equations for the curve of...Ch. 12.1 - (a) Sketch the graph of rt=2t,21+t2 (b) Prove that...Ch. 12.1 - Prob. 51ESCh. 12.1 - Suppose that r1tandr2t are vector-valued functions...Ch. 12.2 - alimt3t2i+2tj=blimt/4cost,sint=Ch. 12.2 - Find r t. art=4+5ti+tt2jbrt=1t,tant,e2tCh. 12.2 - Suppose that r10=3,2,1,r20=1,2,3,r 10=0,0,0,andr...Ch. 12.2 - a012t,t2,sintdt=bti3t2j+etkdt=Ch. 12.2 - Find the limit. limt+t2+13t2+2,1tCh. 12.2 - Prob. 2ESCh. 12.2 - Find the limit. limt2ti3j+t2kCh. 12.2 - Prob. 4ESCh. 12.2 - Determine whether rt is continuous at t=0. Explain...Ch. 12.2 - Determine whether rt is continuous at t=0. Explain...Ch. 12.2 - Sketch the circle rt=costi+sintj, draw the vector...Ch. 12.2 - Sketch the circle rt=costi+sintj, draw the vector...Ch. 12.2 - Find r t. rt=4icostjCh. 12.2 - Find r t. rt=tan1ti+tcostjtkCh. 12.2 - Prob. 11ESCh. 12.2 - Prob. 12ESCh. 12.2 - Prob. 13ESCh. 12.2 - Find the vector rt0; then sketch the graph of rt...Ch. 12.2 - Find the vector rt0; then sketch the graph of rt...Ch. 12.2 - Prob. 16ESCh. 12.2 - Use a graphing utility to generate the graph of rt...Ch. 12.2 - Use a graphing utility to generate the graph of rt...Ch. 12.2 - Find parametric equations of the line tangent to...Ch. 12.2 - Find parametric equations of the line tangent to...Ch. 12.2 - Find parametric equations of the line tangent to...Ch. 12.2 - Find parametric equations of the line tangent to...Ch. 12.2 - Prob. 23ESCh. 12.2 - Find a vector equation of the line tangent to the...Ch. 12.2 - Prob. 25ESCh. 12.2 - Prob. 26ESCh. 12.2 - Letrt=costi+sintj+k.findalimt0rtr tblimt0rtr...Ch. 12.2 - Prob. 28ESCh. 12.2 - Calculate ddtr1tr2tandddtr1tr2t first by...Ch. 12.2 - Calculate ddtr1tr2tandddtr1tr2t first by...Ch. 12.2 - Evaluate the indefinite integral. 3i+4tjdtCh. 12.2 - Evaluate the indefinite integral. t2i2tj+1tkdtCh. 12.2 - Evaluate the indefinite integral. tet,lntdtCh. 12.2 - Evaluate the indefinite integral. et,et,3t2dtCh. 12.2 - Evaluate the definite integral. 0/2cos2t,sin2tdtCh. 12.2 - Evaluate the definite integral. 01t2i+t3jdtCh. 12.2 - Evaluate the definite integral. 02ti+t2jdtCh. 12.2 - Evaluate the definite integral. 333t3/2,3+t3/2,1dtCh. 12.2 - Evaluate the definite integral. 19t1/2i+t1/2jdtCh. 12.2 - Evaluate the definite integral. 01e2ti+etj+tkdtCh. 12.2 - Prob. 41ESCh. 12.2 - Determine whether the statement is true or false....Ch. 12.2 - Prob. 43ESCh. 12.2 - Prob. 44ESCh. 12.2 - Solve the vector initial-value problem for yt by...Ch. 12.2 - Solve the vector initial-value problem for yt by...Ch. 12.2 - Solve the vector initial-value problem for yt by...Ch. 12.2 - Solve the vector initial-value problem for yt by...Ch. 12.2 - (a) Find the points where the curve r=ti+t2j3tk...Ch. 12.2 - Find where the tangent line to the curve...Ch. 12.2 - Show that the graphs of r1tandr2t intersect at the...Ch. 12.2 - Show that the graphs of r1tandr2t intersect at the...Ch. 12.2 - Use Formula (7) to derive the differentiation...Ch. 12.2 - Let u=ut,v=vt,andw=wt be differentiable...Ch. 12.2 - Let u1,u2,u3,1,2,3,w1,w2,andw3, be differentiable...Ch. 12.2 - Prove Theorem 12.2.6 for 2-space.Ch. 12.2 - Derive Formulas (6) and (7) for 3-space.Ch. 12.2 - Prove Theorem 12.2.9 for 2-space.Ch. 12.2 - Prob. 59ESCh. 12.2 - Prob. 60ESCh. 12.3 - If rt is a smooth vector-valued function, then the...Ch. 12.3 - If r(s) is a smooth vector-valued function...Ch. 12.3 - If rt is a smooth vector-valued function, then the...Ch. 12.3 - Suppose that rt is a smooth vector-valued function...Ch. 12.3 - Determine whether rt is a smooth function of the...Ch. 12.3 - Determine whether rt is a smooth function of the...Ch. 12.3 - Determine whether rt is a smooth function of the...Ch. 12.3 - Determine whether rt is a smooth function of the...Ch. 12.3 - Find the arc length of the parametric curve....Ch. 12.3 - Find the arc length of the parametric curve....Ch. 12.3 - Find the arc length of the parametric curve....Ch. 12.3 - Find the arc length of the parametric curve....Ch. 12.3 - Find the arc length of the graph of rt....Ch. 12.3 - Find the arc length of the graph of rt....Ch. 12.3 - Find the arc length of the graph of rt....Ch. 12.3 - Find the arc length of the graph of rt....Ch. 12.3 - Calculate dr/d by the chain rule, and then check...Ch. 12.3 - Calculate dr/d by the chain rule, and then check...Ch. 12.3 - Calculate dr/d by the chain rule, and then check...Ch. 12.3 - Calculate dr/d by the chain rule, and then check...Ch. 12.3 - Prob. 17ESCh. 12.3 - Prob. 18ESCh. 12.3 - Prob. 19ESCh. 12.3 - Prob. 20ESCh. 12.3 - (a) Find the arc length parametrization of the...Ch. 12.3 - Find arc length parametrizations of the lines in...Ch. 12.3 - Prob. 23ESCh. 12.3 - (a) Find the arc length parametrization of the...Ch. 12.3 - Find an arc length parametrization of the curve...Ch. 12.3 - Find an arc length parametrization of the curve...Ch. 12.3 - Find an arc length parametrization of the curve...Ch. 12.3 - Find an arc length parametrization of the curve...Ch. 12.3 - Find an arc length parametrization of the curve...Ch. 12.3 - Find an arc length parametrization of the curve...Ch. 12.3 - Show that the arc length of the circular helix...Ch. 12.3 - Use the result in Exercise 31 to show the circular...Ch. 12.3 - Find an arc length parametrization of the cycloid...Ch. 12.3 - Show that in cylindrical coordinates a curve given...Ch. 12.3 - In each part, use the formula in Exercise 34 to...Ch. 12.3 - Show That in spherical coordinates a curve given...Ch. 12.3 - In each part, use the formula in Exercise 36 to...Ch. 12.3 - h (a) Sketch the graph of rt=ti+t2j. Show that rt...Ch. 12.3 - Find a change of parameter t=g for the semicircle...Ch. 12.3 - What change of parameter t=g would you make if you...Ch. 12.3 - As illustrated in the accompanying figure, copper...Ch. 12.3 - Let rt=cost,sint,t3/2.Findartbdsdtc02rtdt.Ch. 12.3 - Let rt=lnti+2tj+t2k.Findartbdsdtc13rtdt.Ch. 12.3 - Let rt=t2i+t3j (seeFigure12.3.1) . Let t be the...Ch. 12.3 - Prove: If rt is a smoothly parametrized function,...Ch. 12.3 - Prove the vector form of the chain rule for...Ch. 12.3 - Prob. 47ESCh. 12.4 - Prob. 1QCECh. 12.4 - If C is the graph of a smooth vector-valued...Ch. 12.4 - If C is the graph of a smooth vector-valued...Ch. 12.4 - Suppose that C is the graph of a smooth...Ch. 12.4 - In each part, sketch the unit tangent and normal...Ch. 12.4 - Make a rough sketch that shows the ellipse...Ch. 12.4 - In the marginal note associated with Example 8 of...Ch. 12.4 - Use the result in Exercise 3 to show that the...Ch. 12.4 - Find TtandNt at the given point. rt=t21i+tj;t=1Ch. 12.4 - Find TtandNt at the given point....Ch. 12.4 - Find TtandNt at the given point....Ch. 12.4 - Find TtandNt at the given point. rt=lnti+tj;t=eCh. 12.4 - Find TtandNt at the given point....Ch. 12.4 - Find TtandNt at the given point....Ch. 12.4 - Find TtandNt at the given point....Ch. 12.4 - Find TtandNt at the given point....Ch. 12.4 - Use the result in Exercise 3 to find parametric...Ch. 12.4 - Use the result in Exercise 3 to find parametric...Ch. 12.4 - Use the formula Bt=TtNt to find Bt, and then check...Ch. 12.4 - Use the formula Bt=TtNt to find Bt, and then check...Ch. 12.4 - Use the formula Bt=TtNt to find Bt, and then check...Ch. 12.4 - Prob. 18ESCh. 12.4 - Find Tt,Nt,andBt for the given value of t. Then...Ch. 12.4 - Find Tt,Nt,andBt for the given value of t. Then...Ch. 12.4 - Prob. 21ESCh. 12.4 - Prob. 22ESCh. 12.4 - Determine whether the statement is true or false....Ch. 12.4 - Prob. 24ESCh. 12.4 - Discuss some of the advantages of parametrizing a...Ch. 12.5 - If C is a smooth curve parametrized by arc length,...Ch. 12.5 - Let rt be a smooth vector-valued function with...Ch. 12.5 - Suppose that C is the graph of a smooth...Ch. 12.5 - Suppose that C is a smooth curve and that x2+y2=4...Ch. 12.5 - Use the osculating circle shown in the figure to...Ch. 12.5 - Use the osculating circle shown in the figure to...Ch. 12.5 - For a plane curve y=fx the curvature at x,fx is...Ch. 12.5 - For a plane curve y=fx the curvature at x,fx is...Ch. 12.5 - Use Formula (3) to find t. rt=t2i+t3jCh. 12.5 - Use Formula (3) to find t. rt=4costi+sintjCh. 12.5 - Use Formula (3) to find t. rt=e3ti+etjCh. 12.5 - Use Formula (3) to find t. x=1t3,y=tt2Ch. 12.5 - Use Formula (3) to find t. rt=4costi+4sintj+tkCh. 12.5 - Prob. 10ESCh. 12.5 - Use Formula (3) to find t. x=cosht,y=sinht,z=tCh. 12.5 - Use Formula (3) to find t. rt=i+tj+t3kCh. 12.5 - Find the curvature and the radius of curvature at...Ch. 12.5 - Find the curvature and the radius of curvature at...Ch. 12.5 - Find the curvature and the radius of curvature at...Ch. 12.5 - Find the curvature and the radius of curvature at...Ch. 12.5 - Confirm that s is an arc length parameter by...Ch. 12.5 - Confirm that s is an arc length parameter by...Ch. 12.5 - Determine whether the statement is true or false....Ch. 12.5 - Determine whether the statement is true or false....Ch. 12.5 - Determine whether the statement is true or false....Ch. 12.5 - Determine whether the statement is true or false....Ch. 12.5 - (a) Use Formula (3) to show that in 2-space the...Ch. 12.5 - Use part (b) of Exercise 23 to show that the...Ch. 12.5 - Use the result in Exercise 23(b) to find the...Ch. 12.5 - Use the result in Exercise 23(b) to find the...Ch. 12.5 - Use the result in Exercise 23(b) to find the...Ch. 12.5 - Use the result in Exercise 23(b) to find the...Ch. 12.5 - Use the result in Exercise 23(a) to find the...Ch. 12.5 - Use the result in Exercise 23(a) to find the...Ch. 12.5 - Use the result in Exercise 23(a) to find the...Ch. 12.5 - Use the result in Exercise 23(a) to find the...Ch. 12.5 - In each part, use the formulas in Exercise 23 to...Ch. 12.5 - Prob. 34ESCh. 12.5 - Generate the graph of y=fx using a graphing...Ch. 12.5 - Generate the graph of y=fx using a graphing...Ch. 12.5 - Prob. 37ESCh. 12.5 - (a) Use a CAS to graph the parametric curve...Ch. 12.5 - Use the formula in Exercise 23 (a) to show that...Ch. 12.5 - Use the result in Exercise 39 to show that a...Ch. 12.5 - Use the formula in Exercise 39 to find the...Ch. 12.5 - Use the formula in Exercise 39 to find the...Ch. 12.5 - Use the formula in Exercise 39 to find the...Ch. 12.5 - Use the formula in Exercise 39 to find the...Ch. 12.5 - Find the radius of curvature of the parabola...Ch. 12.5 - At what point(s) does y=ex have maximum curvature...Ch. 12.5 - At what point(s) does 4x2+9y2=36 have a minimum...Ch. 12.5 - Find the maximum and minimum values of the radius...Ch. 12.5 - Use the formula in Exercise 39 to show that the...Ch. 12.5 - Use the formula in Exercise 39 and a CAS to show...Ch. 12.5 - Prob. 51ESCh. 12.5 - The evolute of a smooth parametric curve C in...Ch. 12.5 - These exercises are concerned with the problem of...Ch. 12.5 - These exercises are concerned with the problem of...Ch. 12.5 - These exercises are concerned with the problem of...Ch. 12.5 - These exercises are concerned with the problem of...Ch. 12.5 - These exercises are concerned with the problem of...Ch. 12.5 - Assume that s is an arc length parameter for a...Ch. 12.5 - Assume that s is an arc length parameter for a...Ch. 12.5 - Assume that s is an arc length parameter for a...Ch. 12.5 - Prob. 61ESCh. 12.5 - (a) Use the chain rule and the first two...Ch. 12.5 - Use the formula in Exercise 62(d) to find the...Ch. 12.5 - Use the formula in Exercise 62(d) to find the...Ch. 12.5 - Use the formula in Exercise 62(d) to find the...Ch. 12.5 - Use the formula in Exercise 62(d) to find the...Ch. 12.5 - The accompanying figure is the graph of the radius...Ch. 12.6 - If r(t) is the position function of a particle,...Ch. 12.6 - If r(t) is the position function of a particle,...Ch. 12.6 - The tangential scalar component of acceleration is...Ch. 12.6 - The projectile motion model r(t)=12gt2+s0j+tv0...Ch. 12.6 - Prob. 1ESCh. 12.6 - Prob. 2ESCh. 12.6 - Prob. 3ESCh. 12.6 - Prob. 4ESCh. 12.6 - Find the velocity, speed, and acceleration at the...Ch. 12.6 - Find the velocity, speed, and acceleration at the...Ch. 12.6 - Find the velocity, speed, and acceleration at the...Ch. 12.6 - Find the velocity, speed, and acceleration at the...Ch. 12.6 - As illustrated in the accompanying figure, suppose...Ch. 12.6 - Suppose that a particle vibrates in such a way...Ch. 12.6 - What can you say about the trajectory of a...Ch. 12.6 - Prob. 12ESCh. 12.6 - Suppose that the position vector of a particle...Ch. 12.6 - Prob. 14ESCh. 12.6 - Suppose that the position function of a particle...Ch. 12.6 - Suppose that the position function of a particle...Ch. 12.6 - Prob. 17ESCh. 12.6 - Use the given information to find the position and...Ch. 12.6 - Prob. 19ESCh. 12.6 - Prob. 20ESCh. 12.6 - Find to the nearest degree, the angle between v...Ch. 12.6 - Prob. 22ESCh. 12.6 - (a) Suppose that at time t=t0 an electron has a...Ch. 12.6 - Suppose that the position function of a particle...Ch. 12.6 - Find the displacement and the distance travelled...Ch. 12.6 - Find the displacement and the distance travelled...Ch. 12.6 - Find the displacement and the distance travelled...Ch. 12.6 - Find the displacement and the distance traveled...Ch. 12.6 - The position vectors r1andr2 of two particles are...Ch. 12.6 - The position vectors r1andr2 of two particles are...Ch. 12.6 - Prob. 31ESCh. 12.6 - Prob. 32ESCh. 12.6 - Prob. 33ESCh. 12.6 - The position function of a particle is given. Use...Ch. 12.6 - Prob. 35ESCh. 12.6 - Prob. 36ESCh. 12.6 - In these exercises v and a are given at a certain...Ch. 12.6 - In these exercises v and a are given at a certain...Ch. 12.6 - The speed v of a particle at an arbitrary time t...Ch. 12.6 - The speed v of a particle at an arbitrary time t...Ch. 12.6 - The nuclear accelerator at the Enrico Fermi...Ch. 12.6 - Prob. 42ESCh. 12.6 - Prob. 43ESCh. 12.6 - Use the given information and Exercise 23 of...Ch. 12.6 - Use the given information to find the normal...Ch. 12.6 - Use the given information to find the normal...Ch. 12.6 - Determine whether the statement is true or false....Ch. 12.6 - Determine whether the statement is true or false....Ch. 12.6 - Determine whether the statement is true or false....Ch. 12.6 - Determine whether the statement is true or false....Ch. 12.6 - Derive Formula (18) from Formula (14).Ch. 12.6 - An automobile travels at a constant speed around a...Ch. 12.6 - If an automobile of mass m rounds a curve, then...Ch. 12.6 - A Shell is fired from ground level with a muzzle...Ch. 12.6 - A rock is thrown downward from the top of a...Ch. 12.6 - Solve Exercise 55 assuming that the rock is thrown...Ch. 12.6 - A shell is to be fired from ground level at an...Ch. 12.6 - A shell, fired from ground level at an elevation...Ch. 12.6 - Find two elevation angles that will enable a...Ch. 12.6 - A ball rolls off a table 4 ft high while moving at...Ch. 12.6 - As illustrated in the accompanying figure, a fire...Ch. 12.6 - What is the minimum initial velocity that will...Ch. 12.6 - As shown in the accompanying figure on the next...Ch. 12.6 - As illustrated in the accompanying figure, a train...Ch. 12.6 - A shell is fired from ground level at an elevation...Ch. 12.6 - A shell is fired from ground level with an...Ch. 12.6 - At time t=0 a baseball that is 5 ft above the...Ch. 12.6 - Repeat Exercise 67, assuming that the ball leaves...Ch. 12.6 - At time t=0 a skier leaves the end of a ski jump...Ch. 12.6 - At time t=0 a projectile is fired from a height h...Ch. 12.6 - Prob. 71ESCh. 12.7 - Let G denote the universal gravitational constant...Ch. 12.7 - Suppose that a mass m is in an orbit about a mass...Ch. 12.7 - For a planet in an elliptical orbit about the Sun,...Ch. 12.7 - Suppose that a mass m is an orbit about a mass M...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12.7 - In exercises that require numerical values, use...Ch. 12 - Prob. 1RECh. 12 - Describe the graph of the equation. r=23ti4tjCh. 12 - Describe the graph of the equation....Ch. 12 - Describe the graph of the equation....Ch. 12 - Describe the graph of the equation. r=2i+tj+t21kCh. 12 - Prob. 6RECh. 12 - Show that the graph of rt=tsinti+tj+tcostk lies on...Ch. 12 - Find parametric equations for the intersection of...Ch. 12 - In words, give a geometric description of the...Ch. 12 - Prob. 10RECh. 12 - Find parametric equations of the line tangent to...Ch. 12 - Suppose that r1tandr2t are smooth vector-valued...Ch. 12 - Evaluate costi+sintjdt.Ch. 12 - Evaluate 0/3cos3t,sin3tdt.Ch. 12 - Solve the vector initial-value problem...Ch. 12 - Solve the vector initial-value problem...Ch. 12 - Prob. 17RECh. 12 - Prob. 18RECh. 12 - Find the arc length parametrization of the line...Ch. 12 - Find an arc length parametrization of the curve...Ch. 12 - Prob. 21RECh. 12 - Find T0,N0,andB0 for the curve...Ch. 12 - State the definition of "curvature" and explain...Ch. 12 - Suppose that rt is a smooth curve with r 0=iandr...Ch. 12 - Find the curvature of the curve at the stated...Ch. 12 - Find the curvature of the curve at the stated...Ch. 12 - Find the curvature of the curve at the stated...Ch. 12 - Find the curvature of the curve at the stated...Ch. 12 - Suppose that rt is the position function of a...Ch. 12 - (a) What does Theorem 12.2.8 tell you about the...Ch. 12 - As illustrated in the accompanying figure on the...Ch. 12 - If a particle of mass m has uniform circular...Ch. 12 - At time t=0 a particle at the origin of an...Ch. 12 - Prob. 34RECh. 12 - Use Formula (23) in Section 12.7 and refer to...Ch. 12 - As illustrated in the accompanying figure, the...Ch. 12 - A player throws a ball with an initial speed of 60...
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- 6. Researchers who have been studying the alarming rate at which the level of the Dead Sea has been dropping have shown that the density d (x) (in g per cm³) of the Dead Sea brine during evaporation can be estimated by the function d(x)=1.66 0.90x+0.47x², where x is the fraction of the remaining brine, 0≤x≤1. a) Estimate the density of the brine when 60% of the brine remains. b) Find and interpret the instantaneous rate of change of the density when 60% of the brine remains.arrow_forward5. If g'(5) 10 and h'(5)=-4, find f'(5) for f(x)=4g(x)-2h(x)+3.arrow_forward2. Find each derivative. Write answers with positive exponents. a) Dx 9x -3 [97] b) f'(3) if f(x) = x²-5x² 8arrow_forward
- A ladder 27 feet long leans against a wall and the foot of the ladder is sliding away at a constant rate of 3 feet/sec. Meanwhile, a firefighter is climbing up the ladder at a rate of 2 feet/sec. When the firefighter has climbed up 6 feet of the ladder, the ladder makes an angle of л/3 with the ground. Answer the two related rates questions below. (Hint: Use two carefully labeled similar right triangles.) (a) If h is the height of the firefighter above the ground, at the instant the angle of the ladder with the ground is л/3, find dh/dt= feet/sec. (b) If w is the horizontal distance from the firefighter to the wall, at the instant the angle of the ladder with the ground is л/3, find dw/dt= feet/sec.arrow_forwardTwo cars start moving from the same point. One travels south at 60 mi/h and the other travels west at 25 mi/h. At what rate (in mi/h) is the distance between the cars increasing four hours later? Step 1 Using the diagram of a right triangle given below, the relation between x, y, and z is z² = x²+ +12 x Step 2 We must find dz/dt. Differentiating both sides and simplifying gives us the following. 2z dz dt dx 2x. +2y dt dx dy dz x +y dt dt dt 2z dy dt × dx (x+y dt dy dtarrow_forwardAn elastic rope is attached to the ground at the positions shown in the picture. The rope is being pulled up along the dotted line. Assume the units are meters. 9 ground level Assume that x is increasing at a rate of 3 meters/sec. (a) Write as a function of x: 0= (b) When x=10, the angle is changing at a rate of rad/sec. (c) Let L be the the left hand piece of rope and R the right hand piece of rope. When x=10, is the rate of change of L larger than the rate of change of R? ○ Yes ○ Noarrow_forward
- 4.1 Basic Rules of Differentiation. 1. Find the derivative of each function. Write answers with positive exponents. Label your derivatives with appropriate derivative notation. a) y=8x-5x3 4 X b) y=-50 √x+11x -5 c) p(x)=-10x²+6x3³arrow_forwardPlease refer belowarrow_forwardFor the following function f and real number a, a. find the slope of the tangent line mtan = f' (a), and b. find the equation of the tangent line to f at x = a. f(x)= 2 = a = 2 x2 a. Slope: b. Equation of tangent line: yarrow_forward
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