Physics
Physics, 20.08.2019 02:30, Nunez610

The human ear is most sensitive to sound that has a frequency of about 4000 hz. assume that the speed of sound in air is 340 m/s.
what is the wavelength of a sound heard in the air with this frequency?
a. 0.043 m
b. 0.085 m
c. 12 m
d. 340 m

answer
Answers: 1

Other questions on the subject: Physics

image
Physics, 22.06.2019 06:00, Bengynease2598
What will a positive and a negative charge do if they are separated from each other?
Answers: 3
image
Physics, 22.06.2019 07:50, singhmanny3526
The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.
Answers: 2
image
Physics, 22.06.2019 11:30, emilyplays474
In a good thermo flask the main cause of heat loss is
Answers: 1
image
Physics, 22.06.2019 14:40, jesus3426
Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion
Answers: 2
Do you know the correct answer?
The human ear is most sensitive to sound that has a frequency of about 4000 hz. assume that the spee...

Questions in other subjects: