7. an oil tanker heading due west, straight into a strong
wind, reaches a speed of 5 m/s and then shuts down
its engines to drift. the forward-facing flat surfaces
of the tanker catch a total of 60,000 n of force from
the wind. this wind force is pointing backwards, to
the east. the tanker's mass is 100,000 metric tons. if
the wind blows at the same strength for 5 minutes,
then how much has the wind changed the tanker's
speed? (5 points)

Find the steady-state temperature at the center of the plate = /2, = /2) for sums of w from n=1 to n=19 (only odd values). find the value of n for which the change in /2, /2) is less than 1% from the value at the previous n. at this point, we consider the solution converged. does the value of the temperature at the center seem reasonable? in this part, the values of x and y are constant scalar values. you should produce a plot of the value of n on the horizontal and the estimate of the temperature at the center of the plate on the vertical. b. using the value of n (or larger) that resulted in convergence in part (a), create a contourf plot of the temperature distribution across the entire plate. use enough spatial subdivisions to create a useful plot. comment on the results. hint: you need to determine what “x” and “y” values to use to make your t matrix. i recommend using a different number of x and y values. use enough x and y values so that the plot is “smooth”.