7. Water waves of frequency 10 Hz approach at right angles to a boundary between shallow and deep water as shown in the diagram below. Deep Water Boundary 20 cm Shallow water i. Calculate the wavelength of the waves in shallow water.
ii. The wave now passes into deeper water where its speed is 60 cms 1. Calculate wavelength of the waves in deep water. ​

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz

Which of the following are appropriate acceleration units?