subject
Physics, 26.11.2019 03:31 naenae6775

Pure tone sound waves are sinusoidal oscillations of the density of air. our model of waves on an elastic string (beads and massive strings) suggests that waves of moving matter depend on a restoring force (like a tension) and inertia (like a mass), we expect that the speed of sound in air should depend on the air pressure, p (normally about 100 kpa) and the density of the air, rho (normally about 1 kg/m3).part (a) using dimensional analysis, propose an equation for the speed of sound in air using only the parameters p and p. a 17%
part (b) since our dimensional analysis can't tell us if there are numerical factors like 2 or n in our formula, we can't be sure that it provides a good result. calculate what speed of sound your formula predicts. give your answer in m/s. a 17%
part (c) compare your result from part (b) to the real speed of sound. how well does the formula created by dimensional analysis do?

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 13:30
The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.
Answers: 2
question
Physics, 22.06.2019 15:10
In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_
Answers: 3
question
Physics, 22.06.2019 16:30
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?
Answers: 1
question
Physics, 22.06.2019 22:30
Use the illustration to describe how the electromagnetic spectrum changes as its frequency moves from radio waves to higher energy gamma waves in terms of wavelength and amplitude.
Answers: 1
You know the right answer?
Pure tone sound waves are sinusoidal oscillations of the density of air. our model of waves on an el...
Questions
question
Mathematics, 18.10.2020 09:01
question
Mathematics, 18.10.2020 09:01
question
English, 18.10.2020 09:01
question
Biology, 18.10.2020 09:01
Questions on the website: 13722367