![subject](/tpl/images/cats/fizika.png)
In a first experiment, a sinusoidal sound wave is sent through a long tube of air, transporting energy at the average rate of P_avg1. In a second experiment, two other sound waves, identical to the first one, are to be sent simultaneously through the tube with a phase difference phi of either 0, 0.2 wavelength, or 0.5 wavelength between the waves, (a) With only mental calculation, rank those choices of phi according to the average rate at which the waves will transport energy, greatest first, (b) For the first choice of phi, what is the average rate in terms of P_avg1 ?
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 00:50
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:00
Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:10
An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?
Answers: 2
You know the right answer?
In a first experiment, a sinusoidal sound wave is sent through a long tube of air, transporting ener...
Questions
![question](/tpl/images/cats/biologiya.png)
Biology, 10.12.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 23:00
![question](/tpl/images/cats/istoriya.png)
History, 10.12.2020 23:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 23:00
![question](/tpl/images/cats/mkx.png)
Arts, 10.12.2020 23:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 10.12.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 23:00
![question](/tpl/images/cats/biologiya.png)
Biology, 10.12.2020 23:00
![question](/tpl/images/cats/geografiya.png)
Geography, 10.12.2020 23:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/User.png)
SAT, 10.12.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 23:00
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/es.png)
Spanish, 10.12.2020 23:00
![question](/tpl/images/cats/en.png)
English, 10.12.2020 23:00