Question: 7 through 9 please! 7. [-/2 Points] DETAILS OBINPHYS8 6.P.007. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A wave traveling 85 m/s has a wavelength

7 through 9 please!

7. [-/2 Points] DETAILS OBINPHYS8 6.P.007. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A wave traveling 85 m/s has a wavelength of 4.0 m. What is the frequency of the wave (in Hz)? Hz Need Help? Read It 8. [-/2 Points] DETAILS OBINPHYS8 6.P.012. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A steel cable with total length 43 m and mass 120 kg is connected to two poles. The tension in the cable is 2,251 N, and the wind makes the cable vibrate with a frequency of 2 Hz. Calculate the wavelength of the resulting wave on the cable. E Need Help? Read It 9. [-/2 Points] DETAILS OBINPHYS8 6.P.013. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER In a student laboratory exercise, the wavelength of a 36,300 Hz ultrasound wave is measured to be 0.945 cm. Find the air temperature (in K). Y Need Help? Read It

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