The sound intensity level 5. 0 m from a point source is 95 db. At what distance will it be 75 db?.

Find the area of shaded region z=-0.89

What are the costs and benefits of leaving home after high school?

Luminous objects such as flashlights emit light that we can see. how do we see an object that isn’t luminous? a. the object emits light that reaches our eyes. b. light reflects off the object and reaches our eyes. c. light passes through the object uninterrupted. d. light is fully absorbed by the object. e. we can’t see an object that isn’t luminous.