4. a tuning fork is held over a resonance tube, and resonance occurs when the surface of the water is 12 cm below the top of the tube. resonance occurs again when the water is 34 cm below the top of the tube. if the air temperature is 23 ˚c, find the frequency of the tuning fork.

As we know that speed of sounds is given as

here we know that

t = 23 degree C

now from above equation we will have

now we also know that distance between two consecutive resonance length is half of the wavelength

now we know that

so frequency will be 786 Hz

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explanation:

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..