7. What is the velocity of a 12 Hz wave that measures 7.4m in length?

## Step 1<br />The velocity of a wave can be calculated using the formula:<br />### **Velocity = Frequency * Wavelength**<br />In this formula, the frequency is the number of cycles per second, measured in Hertz (Hz), and the wavelength is the distance between two consecutive peaks or troughs of the wave, measured in meters (m).<br /><br />## Step 2<br />In this problem, the frequency of the wave is given as 12 Hz and the wavelength is given as 7.4 m.<br /><br />## Step 3<br />Substitute these values into the formula to calculate the velocity:<br />### **Velocity = 12 Hz * 7.4 m**