By how many decibels do you reduce the sound intensity level due to a source of sound if you triple your distance from it? assume that the waves expand spherically.

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane