9:00 PM End Date: 1:59:00 PM (8%) Problem 5: Sound travels at a speed of v= 1530 m/s in water. While underwater a student hears a f= 2.5 kHz note in

a whale song. Randomized Variables v=1530 m/s f=2.5 kHz λ= 50% Part (a) Input an expression for the wavelength of the sound wave in water 2. Hints: 0% deduction per hint. Hints remaining: 1 a a g k S Submit 50% Part (b) What is the wavelength in meters? PE d h m t Hint 0 f j P V ( ) 7 8 1시 시 * 7 9 HOME 5 6 4 1 2 3 + 0 VO BACKSPACE O Feedback END CLEAR I give up! Feedback: 0% deduction per feedback. Grade Summary Deductions Potential 0% 100% Submissions Attempts remaining: 5 (5% per attempt) detailed view/n(16%) Problem 6: A student attaches a f= 2.5 kHz oscillator to one end of a metal rail of length L=14 m. The student turns on the oscillator and uses a piezoelectric gauge at the other end to measure that the resulting sound wave takes t = 0.0063 s to travel the length of the rail. DA 25% Part (a) Input an expression for the period of the waves in the rail, in terms of the given quantities. T= B 0 f j n Submit Y b g k P Hint Л d h m S ( ) 7 8 9 ^^^ 4 5 6 * 1 2 3 0 + VO BACKSPACE Feedback Hints: 0% deduction per hint. Hints remaining: 1 A 25% Part (b) What is the period, in seconds? 25% Part (c) What is the speed of the wave in the rail, in meters per second? A 25% Part (d) What is the wavelength of the wave within the rail, in meters? HOME I give up! Feedback: 0% deduction per feedback. All mot 1074 HT 110 7 END DEL LEAR Grade Summary Deductions Potential 0% 100% Submissions Attempts remaining: 5 (5% per attempt) detailed view