Human fingers are very sensitive, detecting vibrations with amplitudes as low as 2.0x10^-5m. Consider a sound wave with a wavelength exactly 1000 times greater than the lowest amplitude detectable by fingers. What is this waves frequency

18,850 Hz

Explanation:

We need to figure out the wavelength of the sound wave.

Thus,

Wavelength = 1000 * Lowest Amplitude Wave

Wavelength = 1000 * 2.0 * 10^(-5)

Wavelength = 0.02

Or,

Now, we need the frequency of this wave. It goes by the formula:

Where

f is the frequency in Hz

v is the speed of sound in air (to be 377 m/s)

is the wavelength (we found to be 0.02)

Substituting, we find the frequency:

The wave has frequency of 18,850 Hz

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

their crystal patterns have been disrupted by stress