Q1. A 23.00 kg chair initially at rest on a horizontal floor requires a 364N horizontal force to set it in motion. Once the chair is in motion, a 328N horizontal force keeps it moving at a constant velocity. A 23.00 kg chair initially at rest on a horizontal floor requires a 364N horizontal force to set it in motion. Once chair is in motion, a 328 N horizontal force keeps it moving at the constant velocity.

Q2. When four quadruplets cry simultaneously, how many decibles greater is the sound intensity level than when a single one cries? Also, to enhance the sound intensity again by the same number of decibels in the previous part, how many more crying babies are necessary?