Submit answers to the following problems to Canvas for credit 1. (10 pts) Wolfson Chapter 8 Exercise 4 2. (10 pts) Wolfson Chapter 8 Exercise 9 the answer is in the back of the book. No credit unless you show all your work 3. (10 pts) Wolfson Chapter 8 Exercise 11 the answer is in the back of the book. No credit unless you show all your work 4. (15 pts) Estimate the total resource contained in Ocean currents. You will need to make some assumptions and do some research. Assume you could cover 0.001% of the sea floor with turbines. (0.001% is that which is accessible to land and not too deep and not too cold and not too stormy, but still mostly beyond what we can do technologically, but that is ok, we are estimating a "resource" for the future). Let each rotor have a diameter of 20 meters and let them all be running at 70% of Betz's limit. Look up the other variables you need by searching relevant websites. You need to find the area of the sea floor and an average ocean current speed, and density of sea water. Be explicit about your assumptions, like depth or location or is it an average? Any reasonable assumptions are full credit, but you do need to include your references. Submit answers to the following problems to Canvas for credit 1. (10 pts) Wolfson Chapter 8 Exercise 4 2. (10 pts) Wolfson Chapter 8 Exercise 9 the answer is in the back of the book. No credit unless you show all your work 3. (10 pts) Wolfson Chapter 8 Exercise 11 the answer is in the back of the book. No credit unless you show all your work 4. (15 pts) Estimate the total resource contained in Ocean currents. You will need to make some assumptions and do some research. Assume you could cover 0.001% of the sea floor with turbines. (0.001% is that which is accessible to land and not too deep and not too cold and not too stormy, but still mostly beyond what we can do technologically, but that is ok, we are estimating a "resource" for the future). Let each rotor have a diameter of 20 meters and let them all be running at 70% of Betz's limit. Look up the other variables you need by searching relevant websites. You need to find the area of the sea floor and an average ocean current speed, and density of sea water. Be explicit about your assumptions, like depth or location or is it an average? Any reasonable assumptions are full credit, but you do need to include your references