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(13%) Problem 3: A hand-driven tire pump has a piston with a 2.1 cm diameter and a maximum stroke of 38 cm. ▷ 50% Part (a) How much work do you do in one stroke if the average gauge pressure is 2.6 × 105 N/m²? W = sin() cotan() cos() asin() atan() acotan() cosh() tan() acos() sinh() tanh() cotanh() Degrees O Radians Hints: 1% deduction per hint. Hints remaining: 3 Submit Hint П ( EMA 1 * 1 + 7 8 9 HOME 4 5 6 3 Feedback - 0 END BACKSPACE DRI CLEAR I give up! Feedback: 0% deduction per feedback. A 50% Part (b) What average force do you exert on the piston, neglecting friction and gravitational force? Grade Summary Deductions Potential 0 100 Submissions Attempts remaining: (0% per attempt) detailed view 1 2 09 05
(13%) Problem 5: This problem compares the energy output and heat transfer to the environment by two different types of nuclear power stations-o the normal efficiency of 31 %, and another with an improved efficiency of 46 %. Suppose both have the same heat transfer into the engine in one day, 2. 10¹4 J. ▷ 50% Part (a) How much more electrical energy is produced by the more efficient power station? W = sin() cos() cotan() asin() atan() acotan() cosh() tan() acos()) sinh() tanh() cotanh() Degrees O Radians Submit Hint π ( E A 7 8 9 4 5 1 2 3 END 0 BACKSPACE DEL CLEAR + - VO Feedback HOME I give up! Feedback: 0% deduction per feedback. Hints: 1% deduction per hint. Hints remaining: 1 50% Part (b) What is the change in the heat transfer to the environment after the upgrade to the more efficient power station? Grade Summa Deductions Potential Submissions Attempts rema (0% per attemp detailed view 1