


(1 point) Math 216 Homework webHW7, Problem 10 Find the steady periodic solution to the differential...
(1 point) Math 216 Homework webHW3, Problem 11 Find the solution of the system where primes indicate derivatives with respect to t, that satisfies the initial condition x(0) - -2, y(0) - 5((-1/5)-(5/(10sqrt(30))))en(sqrt(30)t)-5(1/5)-(5/(10sqrt(C X- ysqrt(30)((-1/5)-(5/(10sqrt(30))e (sqrt(30)t)+sqrt(30)(1/ Based on the general solution from which you obtained your particular solution, complete the following two statements: The critical point (0,0) is A. unstable B. asymptotically stable C. stable and is a A. saddle point B. node ° C. Spiral D. center
4. Find the steady state periodic solution, Xsp(t) of the following differential equation. x" + 5x F(t), where F(t) is the function of period 21 such that F(t) = 18 if 0 <t<n and F(t) = -18 if n<t<21.
1 point) Math 216 Homework webHW6, Problem 3 Suppose that the mass in a mass-spring-dashpot system with mass m = 49, damping constant c = 1 12, and spring constant k 185 is set in motion with x(0) 18 and x' (0) 43. (a) Find the position function x(t) in the form x(t) (b) Find the psuedoperiod of the oscillations and the equations of the "envelope curves" shown in the figure below, which graphs the cos( motion of the mass...
(1 point) Math 216 Homework webHW9, Problem 4 Use Laplace transforms to find a nontrivial solution to Require that x1) to find any arbitrary constant in your solution.
(1 point) Math 216 Homework webHW4, Problem 12 25, damping constant c = 40, and spring constant Suppose that the mass in a mass-spring-dashpot system with mass m k 116 is set in motion with x(0) 25 andx (0)-47. (a) Find the position function x(t) in the form xt) cos (b) Find the psuedoperiod of the oscillations and the equations of the "envelope curves" shown in the figure below, which graphs the motion of the mass in the system described...
Math 216 Homework webHW8, Problem 6 Find the Laplace transform of the function: f(t) = 4 sin(8t). You may find it useful to consult a table of Laplace transforms. L{f(t)} =
Homework Two: Problem 17 Previous Problem Problem List Next Problem fy (1 point) The general solution to the second-order differential equation dt2 y(x) = e" (c, cos Bx + ca sin ßx). Find the values of a and B. where ß > 0. - 2x+8y = 0 is in the form Answer: a = and p = Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 0 times. You have...
(1 point) Find the solution r(t) of the differential equation with the given initial condition: r' (t) = (sin 2t, sin 5t, 3t) , r(0) = (5,8,6) r(t) =(
Homework set 6: Problem 9 Previous Problem Problem List Next Problem (1 point) Evaluate the line integral JF d r where F (-sin z, 4 cos y, 10zz) and C is the path given by r(t) (-3t3,362,-3t) for 0 ts 1 Preview My Answers Submit Answers
Homework set 6: Problem 9 Previous Problem Problem List Next Problem (1 point) Evaluate the line integral JF d r where F (-sin z, 4 cos y, 10zz) and C is the path given...
(1 point) Math 216 Homework webHW3, Problem 4 Consider the cascade of two tanks of brine shown in the figure below, with V-105 gallons and V2-209 gallons being the volumes of brine in the two tanks. Each tank also initially contains 52 lb of salt. The three flow rates indicated in the figure are each 5.1 gal/min, with pure water flowing into tank (Click on the picture to see a larger version.) (a) Find the amount x(t) of salt in...