With 5 and the question below. brainliest for the correct answer! urgent physics ! you are trying to hear your friend give directions to new store in town. but from your distance of 15 m you only hear a whisper of about 20 db intensity. you move closer to bring the conversation up to a sound level of about 50 db. how close do you need to be? 100 cm 333 cm 90 cm 47 cm 90 cm

Sound level at distance of 15 m is given as 20 dB

so intensity at this distance is given as

now if we move closer to some some distance the sound level is now 50 dB

now the intensity is given as

now we know that

so now the distance from friend must be 47 cm

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat