How fast should the platform move

Reference no: EM13100775

A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with a frequency of 205 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, v_p, for the person to detect a beat frequency of 7.00 Hz ? Take the speed of sound to be 344 m/s. Express your answer numerically in meters per second.

Reference no: EM13100775

Questions Cloud

How far did the airplane travel in the northerly direction : An airplane travels x = 4.50 x 10^2 km due east and then travels an unknown distance y due north. Finally, it returns to its starting point by traveling a distance of r = 525 km. How far did the airplane travel in the northerly direction.

What will be its fundamental frequency if it is fingered : A tight guitar string has a frequency of 540Hz as its third harmonic. What will be its fundamental frequency if it is fingered at a length of only 56% of its original length?

Stock return calculation-normal distribution : Farrell Corporation's common stock is $25. The price is expected to increase by $5 over the coming year. The standard deviation of the expected price is $3.

Define organizational behavior : Explain the two key practices to managing an employee's performance. Define organizational behavior, discuss its purpose, as well as what it includes within an organization.

How fast should the platform move : How fast should the platform move, v_p, for the person to detect a beat frequency of 7.00 Hz ? Take the speed of sound to be 344 m/s. Express your answer numerically in meters per second.

Efficient allocation of non-renewable resource : Do you think normal market forces adequately promote the sustainable development of non-renewable resources?

What is the temperature of the hot reservoir : A heat engine has a maximum possible efficiency of 0.800. If it operates between a deep lake with a constant temperature of 287.0 k and a hot reservoir, what is the temperature of the hot reservoir?

Describe the test-value : A researcher hypothesizes that the variation in the amount of money spent on business dinners is greater than the variation of the amount of money spent on lunches. The variance of nine business dinners was $6.12 and the variance of 12 business l..

Probability-academic approach : Tired of careless spelling and grammar, a company decides to administer a test to all job applicants. The test consists of 20 sentences. Applicants must state whether each sentence contains any grammar or spelling errors.

User Account

All Pages