Physics, 07.04.2020 19:25, thedragontale1020

A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with a frequency of 235 Hz . A person on the platform right next to the speaker detects the sound waves reflected off the wall and those emitted by the speaker. How fast should the platform move for the person to detect a beat frequency of 6.00 Hz ?
Take the speed of sound to be 344 m/s .

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 20:20, jasminelynn135owmyj1

Suppose that a comet that was seen in 563 a. d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

Answers: 1

continue

Physics, 22.06.2019 05:10, 902coo

What is the electric force acting between two charges of -0.0045 c and -0.0025 c that are 0.0060 m apart? use fe=kq1q2/r^2 and k = 9.00 x 10^9 n*m^2/c^2 a. 1.7 x 10^7 n b. -1.7 x 10^7 n c. -2.8 x 10^9 n d. 2.8 x 10^9 n

Answers: 1

continue

Physics, 22.06.2019 06:00, azaz1819

The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.

Answers: 2

continue

Physics, 22.06.2019 14:30, Cnolteb5663

Slab pull” is a type of tectonic plate movement that occurs due to the forces of mantle convection and results in the subduction of the lithosphere true or false

Answers: 2

continue

Do you know the correct answer?

A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with a frequency o...