Find the transformation matrix that rotates the axis x3 of a rectangular coordinate system 45o toward x1 around the x2 axis.
Prove Equations 1.10 and 1.11 from trigonometric considerations.
Find the transformation matrix that rotates a rectangular coordinate system through and angle of 120o about an axis making equal angles with the
Show(a) (AB)t = Bt At(b) (AB)-1 = B–1 A–1
Show by direct expansion that |λ|2 = 1. For simplicity, take λ to be a two-dimensional orthogonal transformation matrix.
Show that Equation 1.15 can be obtained by using the requirement that the transformation leaves unchanged the length of a line segment.
Consider a unit cube with one corner at the origin and three adjacent sides lying along the three axes of a rectangular coordinate system. Find the
Let A be vector from the origin to point P fixed in space. Let r be a vector from the origin to a variable point Q (x1, x2, x3). Show that A · r
For the two vectors A = I + 2j – k, B = – 2i + 3j + k find(a) A – B and | A – B | (b) Component of B along A (c) Angle between A and B(d) A X
A particle moves in a plane elliptical orbit described by the position vector r = 2b sin wti + b cos wtj
(a) Find v, a, and the particle speed.
Show that the triple scalar product (A X B) · C can be written asShow also that the product is unaffected by an interchange of the scalar and
Let a, b, c be three constant vectors drawn from the origin to the points A, B, C. what is the distance from the origin to the plane defined by the
X is an unknown vector satisfying the following relations involving the known vectors A and B and the scalar Ø. A x X = B, A · X = Ø. Express
Consider the following matrices:Find the following(a) |AB|(b) AC(c) ABC(d) AB BtAt
Find the values of a needed to make the following transformation orthogonal.
What surface is represented by r ·a = const, that is described if a is a vector of constant magnitude and direction from the origin and r is the
Obtain the cosine law of plane trigonometry by interpreting the product (A – B) · (A – B) and the expansion of the product.
Obtain the sine law of plane trigonometry by interpreting the product A x B and the alternate representation (A – B) X B.
Derive the following expressions by using vector algebra.
(a) cos (a – β) = cos a cos β + sin a sin β
(b) sin (a – β) = sin
Show (See also Problem 1-11) that
Use the εijk notation and derive the identity (A X B) x (C X D) = (ABC) C – (ABC) D
Let A be an arbitrary vector, and let e be a unit vector in some fixed direction. Show that A = e(A · e) + e x (A x e) what is the geometrical
Find the components of the acceleration vector a in spherical coordinates.
A particle moves with v = const, along the curve r = k (1 + cos θ) (a cardioids). Find r · e, = a · e,, |a|, and θ.
If r and r = v are both explicit functions of time, show that
Find the angle between the surfaces defined by r2 = 9 and x + y + z2 = 1 at the point (2, – 2, 1).
Show that where r is the vector from the origin to the point (x1, x2, x3).The quantities r and r are the magnitudes of the vectors r and r,
Show thatWhere C is a constant vector
Evaluate the integral
Show that the volume common to the intersecting cylinders defined by x2 + y2 = a2 and x2 + z2 = a2 is V = 16a3/3.
Find the value of the integral ∫s A · da, where A = xi – yj + zk and S is the closed surface defined by the cylinder c2 = x2 + y2. The
Find the value of the integral ∫s A · da, where A = (x2 + y2 + z2) (xi + yi + zk) and the surface S is the defined by the sphere R2 = x2 +
Find the value of the integral ∫s (Δ x A) · da if the vector A = ai + zj + xk and S is the surface defined by the paraboloid z = 1
A Plane passes through the three points (x, y, z) = (1, 0, 0), (0, 2, 0), (0, 0, 3). (a) Find a unit vector perpendicular to the plane.(b) Find the
The height of a hill in meters is given by z = 2xy – 3x2 – 4y2 – 18x + 28y + 12, where x is the distance east and y is the distance north of
Sketch the equipotential surface and the lines of force for two point masses separated by a certain distance. Next, consider one of the masses to
If the field vector is independent of the radial distance within a sphere, find the function describing the density p = p(T) of the sphere.
Assuming that air resistance is unimportant, calculate the minimum velocity a particle must have at the surface of Earth to escape from Earth’s
A particle at rest is attracted toward a center of force according to the relation F = – mk2/x3. Show that the time required for the particle to
A particle falls to Earth starting from rest at a great height (many times Earth’s radius). Neglect air resistance and show that the particle
Computer directly the gravitational force on a unit mass at a point exterior to a homogeneous sphere of matter
Calculate the gravitational potential due to a thin rod of length l and mass M at a distance R from the center of the rod and in a direction
Calculate the gravitational field vector due to a homogeneous cylinder at exterior points on the axis of the cylinder. Perform the calculation(a) By
Calculate the potential due to a thin circular ring of radius a and mass M for points lying in the plane of the ring and exterior to it. The result
Find the potential at off-axis points due to a thin circular ring of radius a and mass M. Let R be the distance from the center of the ring to the
Consider a massive body of arbitrary shape and a spherical surface that is exterior to and does not contain the body. Show that the average value of
In the previous problem, let the massive body be inside the spherical surface. Now show that the average value of the potential over the surface of
A planet of density p1 (spherical core, radius R1) with a thick spherical cloud of dust (density p2, radius R2) is discovered. What is the force on a
Show that the gravitational self-energy (energy of assembly piecewise from infinity) of a uniform sphere of mass M and radius R is
A particle is dropped into a hole drilled straight through the center of Earth. Neglecting rotational effects show that the particle’s motion is
A uniformly solid sphere of mass M and radius R is fixed a distance h above a thin infinite sheet of mass density ps (mass/area). With what force
Newton’s model of the tidal height, using the two water wells dug to the center of Earth, used the fact that the pressure at the bottom of the two
Show that the ratio of maximum tidal heights due to the Moon and Sun is given by and that this value is2.2. REs is the distance between the Sun and
The orbital revolution of the Moon about Earth takes about 27.3 days and is in the same direction as Earth’s rotation (24h). Use this information
A thin disk of mass M and radius R lies in the (x, y) plane with the z-axis passing through the center of the disk. Calculate the gravitational
A point mass m is located a distance D from the nearest end of a thin rod of mass M and length L along the axis of the rod. Find the gravitational
Assume that x (t) = b cos (w0t) = u (t) is a solution of the van der Pol Equation 4.19. Assume that the damping parameter is small and keep terms in
Use numerical calculations to find a solution for the van der Pol oscillator of Equation 4.19. Let x0 and w0 equal 1 for simplicity. Plot the phase
Repeat the previous problem with μ = 0.5. Discuss also the appearance of the limit cycle, x(t), and x(t).
Make a plot of the Henon map, this time starting from the initial values x0 = 0.63135448, y0 = 0.18940634. Computer the shape of this plot with that
Refer to Example 4.1. If each of the springs must be stretched a distance d to attach the particle at the equilibrium position (i.e., in its
Construct a phase diagram for the potential in Figure 4-1.
Construct a phase diagram for the potential U(x) = – (λ/3) x3.
Lord Rayleigh used the equation x (a bx2) x + w2/0 x = 0 in his discussion of nonlinear effects in acoustic phenomena. *
Solve by a successive approximation procedure, and obtain a result accurate to four significant figures;
(a) x + x2 + 1 – tan x, 0 < x <
Derive the expression for the phase paths of the plane pendulum if the total energy is E > 2mgl. Note that this is just the case of a particle moving
Consider the free motion of a plane pendulum whose amplitude is not small. Show that the horizontal component of the motion may be represented by the
A mass m moves in one dimension and is subject to a constant force + F0 when x < 0 and to a constant force – F0 when x > 0. Describe the motion by
Investigate the motion of an un-damped particle subject to a force of the formWhere k and δ are positive constants
The parameters F = 0.7 and c = 0.05 are fixed for Equation 4.43 describing the driven, damped pendulum. Determine which of the values for w (0.1,
A really interesting situation occurs for the logistic equation, Equation 4.46 when a = 3.82831 and x1 = 0.51. Show that a three cycle occurs with
Let the value of a in the logistic equation, Equation 4.46, be equal to 0.9, Make a map like that in Figure 4-21 when x1 = 0.4. Make the plot for
Perform the numerical calculation done in Example 4.3 and show that the two calculations clearly diverge by n = 39. Next, let the second initial
Use the function described in Example 4.3, xn+1 = axan (1 – xn2) where a = 2.5. Consider two starting values of x1 that are similar, 0.900 000 0
Use direct numerical calculation to show that the map f(x) = a sin π x also leads to the Feigenbaum constant, where x and a are limited to the
The curve xn+1 = f (xn) intersects the curve xn+1 = xn at x0. The expansion of xn+1 about x0 is xn+1 – x0 = β (xn – x0) where β =
The tent map is represented by the following iterations;Where 0
Plot the bifurcation diagram for the tent map of the previous problem. Discuss the results for the various regions.
Show analytically that the Lyapunov exponent for the tent maps is λ = in (2a). This indicates that chaotic behavior occurs for a > ½.
Consider the Henon map described by Let a = 1.4 and b = 0.3, and use a computer to plot the first 10,000 points (xw yn) starting from the initial
A circuit with a nonlinear inductor can be modeled by the first-order differential equations.Chaotic oscillations for this situation have been
The motion of a bouncing ball, on successive bounces, when the floor oscillates sinusoidally can be described by the Chirikov map:Where
Suppose that the force acting on a particle is factorable into one of the following forms;(a) F(xi, t) = f(xi) g(t)(b) F(xi, t) = f(xi) g(t)(c) F(xi,
A particle of mass m is constrained to move on the surface of a sphere of radius R by ab applied force F (θ, Ø). Write the equation of motion.
If projectile is fired from the origin of the coordinate system with an initial velocity vo and in direction making and angle a with the horizontal,
A clown is juggling four balls simultaneously. Students use a video tape to determine that it takes the clown 0.9 s to cycle each ball through his
A jet fighter pilot knows he is able to withstand an acceleration of 9g before blacking out. The pilot points his plane vertically down while
In the blizzard of ’88, a rancher was forced to drop hay bales from an airplane to feed her cattle. The plane flew horizontally at 160 km/hr and
Include air resistance for the bales of hay in the previous problem. A bale of hay has a mass of about 30kg and an average area of about 0.2m2. Let
A projectile is fired with a velocity v0 such that it passes through two points both a distance h above the horizontal. Show that if the gun is
Consider a projectile fired vertically in a constant gravitational field. For the same initial velocities, compare the times required for the
Consider a particle of mass m whose motion starts from rest in a constant gravitation field. If a resisting force proportional to the square of the
A particle is projected vertically upward in a constant gravitational field with an initial speed v0. Show that if there is a retarding force
A particle moves in a medium under the influence of a retarding force equal to mk(v3 + a2v), where k and a are constants. Show that for any value of
A projectile is fired with initial speed v0 at an elevation angle of a up a hill of slope β(a > β).
(a) How far up the hill will the
A particle of mass m slides down and inclined plane under the influence of gravity. If the motion is resisted by a force ∫ = kmv2, show that the
A particle is projected with an initial velocity v0 up a slope that makes an angle a with the horizontal. Assume frictionless motion and find the
A strong softball player smacks the ball at a height of 0.7 m above home plate. The ball leaves the player’s bat at an elevation angle of 35o and
Include air resistance proportional to the square of the ball’s speed in the previous problem. Let the drag coefficient be cw = 0.5, the softball
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