subject
Physics, 20.08.2019 19:20 gaku9123

Afire truck is equipped with a horn that produces sound waves at a frequency of 1000hz. if the truck is moving at a velocity of 25m/s on a hot summer day with temperature of 40 degrees celcius. a) find the velocity of sound at 40 degree celcius
use this velocity to find the frequency of the sound as heard by an observer when the truck is
b) approaching the observer and
c) moving away from the observer

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 07:10
Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers
Answers: 1
question
Physics, 22.06.2019 10:30
The precision of a laboratory instrument is ± 0.05 g. the accepted value for your measurement is 7.92 g. which measurements are in the accepted range? check all that apply. 7.85 g 7.89 g 7.91 g 7.97 g 7.99 g
Answers: 1
question
Physics, 22.06.2019 12:10
Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?
Answers: 2
question
Physics, 22.06.2019 12:30
What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery
Answers: 1
You know the right answer?
Afire truck is equipped with a horn that produces sound waves at a frequency of 1000hz. if the truck...
Questions
question
Spanish, 30.10.2019 12:31
question
Mathematics, 30.10.2019 12:31
question
Mathematics, 30.10.2019 12:31
question
Mathematics, 30.10.2019 12:31