Question

just need to double check my answers

please answer 17-22

33.3 Hz ) 333 HZ ) 3.35 110 temperature of the air increases, what happens to the velocity of sound? (Assume all other factors remain the same) a) increases b) decreases ca d) none of the given cases c) does not change m. What is the period of the wave? monic wave travels with a speed of 200 m/s and has a wavelength of 0.800 a) 40 s ) 250 s c) 0.004s d) 80 s an propagate on a string held taut with tension force. V-(F/ 2 and u=m/L m length of rope has a mass of 700 g. It is pulled taught with a force of 1.00 N. What is the speed of waves on the rope? 3)2.93 m/s b) 11.7 m/s c) 42.0 m/s d) 3.42 m/s 20) A 25.0 g string is stretched with a tension of 43.0 N; the string has a length of 12.0 m. What is the frequency of the second harmonic? 21) What is the wavelength of a 40 Hz wave traveling at 500 m/s? a) 0.08 m b ) 12.5 m c) 80 m d) 20000 km 22) The fundamental frequency in an experiment of standing waves is 330 Hz. What is the frequency of the third harmonic? a) 110 Hz b) 220 Hz c) 660 Hz d) 990 Hz A student produced a sinusoidal cycles. The ti

Answer 1

DELTA Page No. Date 1 17. - velocity (v) @ / tempersture (a) Increase with temp. t = V - and f 7 T -werelength t- frequency ✓- speed of found T-time perrod T=4810 3 , IT = 0.004s / 1 007 Ins 60 माठि Tv=2.93 m/s - M 43 & 12 v 25x16-3 143.7 mis v= F2 = 2 4 - 2 (193.7 fra 11.97 H2] n = 500 f n = 12.5 m Sweet for 3 to 3) 3 (330) Selfie To 990 Het U