Class Management | Help Work and Energy Part 3 Begin Date: 4/1/2022 12:01:00 AM -- Due Date: 4/22/2022 11:59:00 PM End Date: 5/15/2022 11:59:00 PM (10%) Problem 9: The swimmer shown in the gure exerts an average horizontal backward force of 72.5 N with his arm during each 1.80 m long stroke. I1.8 mI @tllccxpertta.c0m E A 50% Part (a) What is his work output, in joules, for each stroke? D 5 50% Part (b) Calculate the power output, in watts, of his arms if he does 120 strokes per minute. Grade Summary P = l Deductions 0% Potential 100% Submissions Attempts remaining: 5 (0% per attempt) 7 dFailed view Degrees O Radians Submit Hint Hints: 0% deduction per hint. Hints remaining: 1 Class Management | Help Work and Energy Part 3 Begin Date: 4/ 1/2022 12:01:00 AM -- Due Date: 4/22/2022 11:59:00 PM End Date: 5/15/2022 11:59:00 PM (10%) Problem 8: Suppose a man metabolizes 11500 1d of food energy in one day. B E 33% Part (a) What is the average metabolic rate, in watts, for this man? E A 33% Part (b) What is the maximum amount of work, in joules, he can do without breaking down fat, assuming a maximum efciency of 17.5 %? p A 33% Part (c) How much more work can a 187-W (0.250-horsepower) motor do, as compared with this person over the same time interval? Wmolor/Wman = I Degrees O Radiaus 1/0 BACKSPACE my. CLEAR Submit Hint I give up! Hints: 0% deduction per hint. Hints remaining: 1 Feedback: I] % deduction per feedback. Grade Summary Deductions 0 % Potential 100 'ii: Submissions Attempts remaining: 5 (0% per attempt) 7 rimmed view