The softest sound a human ear can hear is at 0 dB (Io = 10-12 W/m2). Sounds above 130 dB cause pain. A particular student's eardrum has an area of A = 53 mm2. Randomized Variables A = 53 mm2 show answer No Attempt 50% Part (a) What is the most power, in watts, the ear can receive before the listener feels pain? Pmax = | sin() cos() tan() cotan() asin() acos() atan() acotan() sinh() cosh() tanh() cotanh() Degrees Radians π ( ) 7 8 9 HOME E ↑^ ^↓ 4 5 6 ← / * 1 2 3 → + - 0 . END √() BACKSPACE DEL CLEAR Grade Summary Deductions 0% Potential 100% Submissions Attempts remaining: 3 (4% per attempt) detailed view Hints: 4% deduction per hint. Hints remaining: 3 Feedback: 5% deduction per feedback. No Attempt No Attempt 50% Part (b) What is the smallest power, in watts, the ear can detect? All content © 2020 Expert TA, LLC