A baseball coach shouts loudly at an umpire standing 38
A baseball coach shouts loudly at an umpire standing 3.8 meters away. If the sound power produced by the coach is 2.2 × 10?3 W, what is the intensity of the sound when it reaches the umpire? Answer in units of W/m2.
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ball 1 with a mass of 110 and traveling at 140 collides head on with ball 2 which has a mass of 320and is initially at
a piano wire with mass 345 g and length 770 cm is stretched with a tension of 330 n a wave with frequency 100 hz and
two cars collide at an intersection car a with a mass of 2000 kg is going from west to east while car b of mass 1400
a 1000kg car moving 40ms skids to a stop during the skid the only force is the frictional force between the tires and
a baseball coach shouts loudly at an umpire standing 38 meters away if the sound power produced by the coach is 22
over 500 planets have so far been detected beyond our solar system this is accomplished by looking for the effect the
a typical decibel level for a buzzing mosquito is 40 db and normal conversation is approximately 50 db how many buzzing
please answer both parts a and ba the decibel level of the noise from a jet aircraft is 130 db when measured 168 m from
a rock group is playing in a bar sound emerging from the door spreads uniformly in all directions the intensity level
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