Recent content by Salty

When a single person shouts at a football game, the sound intensity level at the center of the field is 60 dB. When all the people shout together the intensity level increases to 109 dB. Assuming that each person generates the same sound intensity at the center of the field, how many people are...

A portable radio is sitting at the edge of a balcony 5.1m above the ground. The unit is emitting a sound uniformly in all directions. By accident, it falls from rest off the balcony and continues to play all the way down. A gardener is working in a flower bed directly below the falling unit...