7. Compare the energy needed to move 20 people 10km with 5 cars of 4 people...

7. Compare the energy needed to move 20 people 10km with 5 cars of 4 people with 3 stops at a speed of 70km / h.

With a bus that stops every 2000m and only reaches a speed of 45 km / h.

Both engines have an efficiency of 30%, the car with 4 people weighs 1.4 tons, the bus 12.5 tons (including 20 people).

c_dA = 0.8m2 for the car and the bus is 3.2m high and 2.5m wide and has an air resistance coefficient of 0.5.

Expert Solution

genius_generous answered 1 year ago

5. Nineteen people move out of a neighborhood; four are minorities. Of the nineteen, eight move...

5. Nineteen people move out of a neighborhood; four are minorities. Of the nineteen, eight move onto a block with new housing, and one of these eight is a minority. How likely is it that, if there were no discrimination, less than two people out of the eight people on this new block would be minorities? If the resulting probability is less than 0.05, evidence for discrimination exists. Does such evidence exist in this case? (3) 6. There is an...

5. Nineteen people move out of a neighborhood; four are minorities. Of the nineteen, eight move...

5. Nineteen people move out of a neighborhood; four are minorities. Of the nineteen, eight move onto a block with new housing, and one of these eight is a minority. How likely is it that, if there were no discrimination, less than two people out of the eight people on this new block would be minorities? If the resulting probability is less than 0.05, evidence for discrimination exists. Does such evidence exist in this case? 6. There is an average...

A = [4, 5, 9] B = [-4, 5, -7] C = [2, -7, -8, 5]...

A = [4, 5, 9] B = [-4, 5, -7] C = [2, -7, -8, 5] D = [1, -9, 5, -3] E = [3, 3, -1] Uz = 1/|z| ^z d(X,Y) = (Rθ) d = diameter R = Radius θ = Theta Find a. Uc b. d (D, C) c. Let P = B + 3E, UP = d. A x B e. 3B x E f. C x D

Problem 7. Show that in a room full of 20 people there are 2 people who...

Problem 7. Show that in a room full of 20 people there are 2 people who have the same number of friends present. Friendship is symmetric. If A is friends with B then B is friends with A.

Consider the following pairs of observations.X 1 4 3 5 7 2 6 20

Consider the following pairs of observations. X 1 4 3 5 7 2 6 20 Y 3 12 10 12 19 7 17 60 A) Calculate the least squares line. B) Determine a 95% confidence interval for the mean value of Y using X = 6 C) Determine a 95% prediction interval for the Y value using X = 6

4) Let ? = {2, 3, 5, 7}, ? = {3, 5, 7}, ? = {1,...

4) Let ? = {2, 3, 5, 7}, ? = {3, 5, 7}, ? = {1, 7}. Answer the following questions, giving reasons for your answers. a) Is ? ⊆ ?? b)Is ? ⊆ ?? c) Is ? ⊂ ?? d) Is ? ⊆ ?? e) Is ? ⊆ ?? 5) Let ? = {1, 3, 4} and ? = {2, 3, 6}. Use set-roster notation to write each of the following sets, and indicate the number of elements in...

(a) Illustrate how the list 5, 13, 2, 25, 7, 17, 20, 8, 4 is sorted...

(a) Illustrate how the list 5, 13, 2, 25, 7, 17, 20, 8, 4 is sorted with Mergesort. Count the number of comparisons made. (b) Illustrate how the list 5, 13, 2, 25, 7, 17, 20, 8, 4 is sorted with Heapsort.

(a) Illustrate how the list 5, 13, 2, 25, 7, 17, 20, 8, 4 is sorted...

(a) Illustrate how the list 5, 13, 2, 25, 7, 17, 20, 8, 4 is sorted with Mergesort. Count the number of comparisonsmade. (b) Illustrate how the list 5, 13, 2, 25, 7, 17, 20, 8, 4 is sorted with Heapsort

[4 5 5 2 4 4 6 3 3 7 5 3 6 3 4 4...

[4 5 5 2 4 4 6 3 3 7 5 3 6 3 4 4 6 5 4 5 3 7 5 5 4 2 6 5 6 6] This is my dataset Find mean, median, mode, variance, standard deviation, coefficient of variation, range, 70th percentile, 3rdquartile of the data and skewness and define what each of these statistics measure. For example, mean is a measure of the central tendency, what about the rest? Use Chebyshev’s rule to find...

[4 5 5 2 4 4 6 3 3 7 5 3 6 3 4 4...

[4 5 5 2 4 4 6 3 3 7 5 3 6 3 4 4 6 5 4 5 3 7 5 5 4 2 6 5 6 6] This is my dataset Split the dataset in two equal parts. You have 30 datavalues. If you split the data in two equal parts each part will contain 15 data values. Call the first part Y and second part X.Draw scatter plot of the 2 datasets, X being on the horizontal...

Question

7. Compare the energy needed to move 20 people 10km with 5 cars of 4 people...

Solutions

Expert Solution

Related Solutions

5. Nineteen people move out of a neighborhood; four are minorities. Of the nineteen, eight move...

5. Nineteen people move out of a neighborhood; four are minorities. Of the nineteen, eight move...

A = [4, 5, 9] B = [-4, 5, -7] C = [2, -7, -8, 5]...

Problem 7. Show that in a room full of 20 people there are 2 people who...

Consider the following pairs of observations.X 1 4 3 5 7 2 6 20

4) Let ? = {2, 3, 5, 7}, ? = {3, 5, 7}, ? = {1,...

(a) Illustrate how the list 5, 13, 2, 25, 7, 17, 20, 8, 4 is sorted...

(a) Illustrate how the list 5, 13, 2, 25, 7, 17, 20, 8, 4 is sorted...

[4 5 5 2 4 4 6 3 3 7 5 3 6 3 4 4...

[4 5 5 2 4 4 6 3 3 7 5 3 6 3 4 4...