Q2)
The speed of sound is 346 m/s. If a sound wave travels at a frequency of 55 Hz,
what...
Mathematics, 21.04.2020 18:57 cheerleader791
Q2)
The speed of sound is 346 m/s. If a sound wave travels at a frequency of 55 Hz,
what would its wavelength be? *
6.29m
Q3)
If the same wave in question #2 travels through water with the same wavelength,
at what frequency will it be traveling? (speed of sound in water = 350 m/s)
Answer =?
Answers: 2
Mathematics, 21.06.2019 14:50
Apair of ordinary dice is rolled. what is the probability that each die will show a number higher than 4. 1. (1/36) 2. (1/12) 3. (1/6) 4. (1/4) 5. (1/3)
Answers: 2
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) β sinh2(x) = 1 and (b) 1 β tanh 2(x) = sech 2(x). solution (a) cosh2(x) β sinh2(x) = ex + eβx 2 2 β 2 = e2x + 2 + eβ2x 4 β = 4 = . (b) we start with the identity proved in part (a): cosh2(x) β sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 β sinh2(x) cosh2(x) = 1 or 1 β tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 21:30
Are the corresponding angles congruent? explain why or why not.
Answers: 2
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