Consider the experimental setup shown below. The length of the string between the string vibrator and the pulley is L = 1.00m. The linear density of the string is μ = 0.0046 kg/m. The string vibrator can oscillate at any frequency. The hanging mass is 5.00 kg. String vibrator ト dm με constant dx a) What are the wavelength and frequency of the n = 6 mode? 26= m Frictionless pulley Hanging mass f6- Hz b) The oscillation of the string oscillates the air with the same frequency. What is the wavelength of the sound produced if the speed of sound is 343 m/s? λ = S ✓ m

The density of a sample of water is =998.00kg/m3 and the bulk modulus is =2.15GPa . What is the speed of sound through the sample?

A microphone receiving a pure sound tone feeds an oscilloscope, producing a wave on its screen. If the sound intensity is originally 2.00105W/m2 , but is turned up until the amplitude increases by 30.0% , what is the new intensity?

Check Your Understanding The wave function above is derived using a sine function. Can a cosine function be used instead?

The source in Young’s experiment emits at two wavelengths. On the viewing screen, the fourth maximum for one wavelength is located at the same spot as the fifth maximum for the other wavelength. What is the ratio of the two wavelengths?

The energy of a ripple on a pond is proportional to the amplitude squared. If the amplitude of the ripple is 0.1 cm at a distance from the source of 6.00 meters, what was the amplitude at a distance of 2.00 meters from the source?

Check Your Understanding The equations for the wavelengths and the frequencies of the modes of a wave produced on a string: n=2nLn=1,2,3,4,5...andn=nv2L=nf1n=1,2,3,4,5... were derived by considering a wave on a string where there were symmetric boundary conditions of a node at each end. These modes resulted from two sinusoidal waves with identical characteristics except they were moving in opposite directions, confined to a region L with nodes required at both ends.Will the same equations work if there were symmetric boundary conditions with antinodes at each end? What would the normal modes look like for a medium that was free to oscillate on each end? Don’t worry for now if you cannot imagine such a medium, just consider two sinusoidal wave functions in a region of length L, with antinodes on each end.

Sound is more effectively transmitted into a stethoscope by direct contact rather than through the air, and it is further intensified by being concentrated on the smaller area of the eardrum. It is reasonable to assume that sound is transmitted into a stethoscope 100 times as effectively compared with transmission though the air. What, then, is the gain in decibels produced by a stethoscope that has a sound gathering area of 15.0 cm2, and concentrates the sound onto two eardrums with a total area of 0.900 cm2 with an efficiency of 40.0% ?

A device called an insolation meter is used to measure the intensity of sunlight. It has an area of 100 cm2 and registers 6.50 W. What is the intensity in W/m2?

A stroboscope is set to flash every 8.00105 s. What is the frequency of the flashes?