MyLab Math with Pearson eText -- 24-Month Standalone Access Card -- For Differential Equations and Boundary Value Problems: Computing and Modeling Tech Update
5th Edition
ISBN: 9780134872971
Author: Edwards, C., Penney, David, Calvis
Publisher: PEARSON
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Chapter 6.2, Problem 20P
Program Plan Intro
Write a code to investigate the type of the critical point for the given linear system and construct a phase portrait.
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Students have asked these similar questions
For an object of mass m=3 kg to slide without friction up the rise of height h=1 m shown, it must have a
minimum initial kinetic energy (in J) of:
h
O a. 40
O b. 20
O c. 30
O d. 10
2. calculates the trajectory r(t) and stores the coordinates for time steps At as a nested list trajectory that contains [[xe, ye,
ze], [x1, y1, z1], [x2, y2, z2], ...]. Start from time t = 0 and use a time step At = 0.01; the last data point in the
trajectory should be the time when the oscillator "hits the ground", i.e., when z(t) ≤ 0;
3. stores the time for hitting the ground (i.e., the first time t when z(t) ≤ 0) in the variable t_contact and the corresponding positions
in the variables x_contact, y_contact, and z_contact. Print
t_contact = 1.430
X_contact = 0.755
y contact = -0.380
z_contact =
(Output floating point numbers with 3 decimals using format (), e.g., "t_contact = {:.3f}" .format(t_contact).) The partial
example output above is for ze = 10.
4. calculates the average x- and y-coordinates
1
y =
Yi
N
where the x, y, are the x(t), y(t) in the trajectory and N is the number of data points that you calculated.
Store the result as a list in the variable center = [x_avg, y_avg]…
Q.4 In an experimental setup, mineral oil is filled in between the narrow gap of two horizontal smooth
plates. The setup has arrangements to maintain the plates at desired uniform temperatures. At these
temperatures, ONLY the radiative heat flux is negligible. The thermal conductivity of the oil does not
vary perceptibly in this temperature range. Consider four experiments at steady state under different
experimental conditions, as shown in the figure Q1. The figure shows plate temperatures and the heat
fluxes in the vertical direction. What is the steady state heat flux (in W m) with the top plate at 90°C and
the bottom plate at 45°C?
[4]
30°C
70°C
40°C
90°C
flux = 39 Wm-2
flux =30 Wm2
flux = 52 Wm 2
flux ? Wm-2
60°C
35°C
80°C
45°C
Experiment 1
Experiment 2
Experiment 3
Experiment 4
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- 2. Heat conduction in a square plate Three sides of a rectangular plate (@ = 5 m, b = 4 m) are kept at a temperature of 0 C and one side is kept at a temperature C, as shown in the figure. Determine and plot the ; temperature distribution T(x, y) in the plate. The temperature distribution, T(x, y) in the plate can be determined by solving the two-dimensional heat equation. For the given boundary conditions T(x, y) can be expressed analytically by a Fourier series (Erwin Kreyszig, Advanced Engineering Mathematics, John Wiley and Sons, 1993):arrow_forwardProblem 3 In class, we solved for the vorticity distribution for a "real" line vortex diffusing in a viscous fluid. Integrate this vorticity distribution to find the tangential velocity as a function of radius. Plot the velocity distributions for a a line vortex of circulation 0.5 mls in 20 °C air for times of 1, 10, and 100 seconds.arrow_forwardPLS ANSWERarrow_forward
- Please solve.arrow_forwarda. For the function and point below, find f'(a). b. Determine an equation of the line tangent to the graph of f at (a,f(a)) for the given value of a. f(x) = 2x°, a = 1 %3D ..... a. f'(a) =arrow_forwardConsider the function as given. (a) Use a computer algebra system to graph the function and use the graph to approximate the critical numbers visually. (b) Use a computer algebra system to find f′ and approximate the critical numbers. Are the results the same as the visual approximation in part (a)? Explain.arrow_forward
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